{"title":"Singer 31 \u0026 331K Parts","description":"\u003cp\u003eFind genuine and compatible replacement parts for the Singer 31 and 331K industrial sewing machines. This collection gathers hooks, feed dogs, needle plates, bobbin cases, and other components that fit these Singer models.\u003c\/p\u003e\u003cp\u003eKeep your Singer machine running reliably with quality replacement parts.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eParts that fit the Singer 31 and 331K\u003c\/li\u003e\n\u003cli\u003eHooks, feed dogs, and bobbin cases\u003c\/li\u003e\n\u003cli\u003eNeedle plates and components\u003c\/li\u003e\n\u003cli\u003eGenuine and compatible options\u003c\/li\u003e\n\u003c\/ul\u003e","products":[{"product_id":"premium-replacement-needle-clamp-screw-808-for-singer-31-331k-sewing-machine","title":"Needle Clamp Screw 808 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eNeedle Clamp Screw (808) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nEnsure your industrial sewing machine stays in peak performance with this Needle Clamp Screw (Part #808). Specifically designed for precision and durability, this essential hardware component provides a secure, tight hold for your needles, preventing skipped stitches and needle deflection during heavy-duty projects.\u003c\/p\u003e\n\n\u003cp\u003eKey Features \u0026amp; Benefits\u003cbr\u003e\nPerfect Fit: Engineered specifically for the Singer 31 and 331K Class industrial sewing machines.\u003c\/p\u003e\n\n\u003cp\u003eHigh-Durability Steel: Crafted from industrial-grade hardened steel to resist stripping and wear over time.\u003c\/p\u003e\n\n\u003cp\u003ePrecision Threading: Features the exact #808 threading for a smooth, reliable fit every time you change a needle.\u003c\/p\u003e\n\n\u003cp\u003eEnhanced Stability: Keeps the needle firmly locked in place, ensuring consistent stitch quality even at high speeds.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309658648825,"sku":"808","price":0.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-knee-lifter-2777-for-singer-31-331k-and-singer-96k-sewing-machines","title":"Knee Lifter 2777 for Singer 31, 331K and Singer 96K Sewing Machines","description":"\u003cp\u003eKnee Lifter (Part #2777) – For Singer 31, 331K \u0026amp; 96K\u003cbr\u003e\nUpgrade your industrial sewing setup with this Knee Lifter (Part #2777). Designed for professionals who demand efficiency, this heavy-duty knee lifter allows for hands-free presser foot control, letting you pivot corners and adjust fabric with total precision.\u003c\/p\u003e\n\n\u003cp\u003eWhy Choose the #2777 Knee Lifter?\u003cbr\u003e\nHands-Free Operation: Effortlessly raise and lower your presser foot using your knee, keeping both hands on your workspace for better accuracy.\u003c\/p\u003e\n\n\u003cp\u003eRugged Construction: Built from high-quality, corrosion-resistant metal to withstand the daily rigors of an industrial sewing environment.\u003c\/p\u003e\n\n\u003cp\u003eErgonomic Design: Features a smooth, adjustable pivot point for a comfortable fit tailored to your sewing posture.\u003c\/p\u003e\n\n\u003cp\u003eDirect Replacement: Manufactured to the exact specifications of the original Singer 2777 component for a seamless installation.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309658714361,"sku":"2777","price":15.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-needle-clamp-4303-for-singer-31-331k-sewing-machine","title":"Needle Clamp 4303 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eNeedle Clamp (Part #4303) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nMaintain the precision of your industrial machine with this Needle Clamp (Part #4303). A vital component for any heavy-duty sewing setup, this needle clamp ensures your needle is perfectly centered and securely locked, providing the stability needed for high-speed industrial stitching.\u003c\/p\u003e\n\n\u003cp\u003eTop Performance Features\u003cbr\u003e\nSecure Locking Power: Designed to eliminate needle vibration, ensuring perfectly straight seams and preventing skipped stitches.\u003c\/p\u003e\n\n\u003cp\u003eIndustrial Strength: Manufactured from high-grade steel to endure the constant pressure and heat of long-term industrial use.\u003c\/p\u003e\n\n\u003cp\u003eSeamless Compatibility: A direct replacement for the original Singer 4303 part, ensuring a perfect fit without modifications.\u003c\/p\u003e\n\n\u003cp\u003eSmooth Finish: Features a polished surface to prevent thread snagging or fraying during high-speed operation.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309658779897,"sku":"4303","price":3.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-small-roller-foot-12264-22mm-for-singer-31-331k-sewing-machine","title":"Small Roller Foot 12264 (22MM) for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eSmall Roller Foot 12264 (22mm) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nMaster difficult fabrics with the Premium 22mm Small Roller Foot (Part #12264). Specifically designed for Singer 31 and 331K industrial machines, this specialized presser foot features a rotating textured roller that glides over materials that typically \"stick\" to standard flat feet.\u003c\/p\u003e\n\n\u003cp\u003eWhy Use a Roller Foot?\u003cbr\u003e\nSuperior Material Handling: The 22mm small wheel provides targeted pressure, making it perfect for sewing curved edges and small pieces of heavy material.\u003c\/p\u003e\n\n\u003cp\u003eAnti-Stick Technology: Ideal for leather, vinyl, PVC, velvet, and plastics. It eliminates the \"friction drag\" that causes uneven feeding or puckering.\u003c\/p\u003e\n\n\u003cp\u003eUnobstructed View: The compact design offers better visibility around the needle, allowing for precise topstitching and detail work.\u003c\/p\u003e\n\n\u003cp\u003eGentle on Fabric: Unlike serrated feed dogs alone, the rolling action prevents \"teeth marks\" or marring on delicate leather surfaces.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309658845433,"sku":"12264","price":9.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-large-roller-foot-12267-28mm-for-singer-31-331k-sewing-machine","title":"Large Roller Foot 12267 (28MM) for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eLarge Roller Foot 12267 (28mm) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nTake on heavy-duty projects with ease using the Premium 28mm Large Roller Foot (Part #12267). This industrial-grade attachment is the go-to solution for Singer 31 and 331K users who need maximum traction and smooth feeding on thick, tacky, or uneven materials.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Benefits\u003cbr\u003e\nEnhanced Feeding Power: The larger 28mm wheel provides a greater surface area of contact, making it significantly easier to feed heavy leather, upholstery, and laminated fabrics through your machine.\u003c\/p\u003e\n\n\u003cp\u003eNon-Stick Performance: The rolling action prevents the \"bulldozing\" effect often seen with standard feet on vinyl, leather, and coated fabrics, ensuring smooth, skipped-stitch-free sewing.\u003c\/p\u003e\n\n\u003cp\u003eHeavy-Duty Durability: Constructed from high-strength steel and alloys to handle the high-pressure settings required for thick material stacks.\u003c\/p\u003e\n\n\u003cp\u003eConsistent Stitch Length: By reducing friction between the foot and the fabric, it helps maintain a perfectly uniform stitch length even at high speeds.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309658910969,"sku":"12267","price":9.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-large-roller-foot-12393-sh31-28mm-for-singer-31-331k-sewing-machine","title":"Large Roller Foot 12393 = SH31 (28MM) for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eLarge Roller Foot 12393 \/ SH31 (28mm) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nOptimize your heavy-duty sewing with the Premium 28mm Large Roller Foot (Part #12393 \/ SH31). This high-performance attachment is engineered for Singer 31 and 331K industrial machines, providing the extra grip and smooth movement needed for thick or difficult-to-feed materials.\u003c\/p\u003e\n\n\u003cp\u003eTop Performance Features\u003cbr\u003e\nSuperior Traction: The large 28mm diameter wheel offers a broad contact surface, ensuring heavy fabrics move through the machine without slipping or dragging.\u003c\/p\u003e\n\n\u003cp\u003eSpecialized for \"Sticky\" Materials: The rotating action is essential for materials like leather, vinyl, suede, and plastic-coated fabrics that tend to stick to standard presser feet.\u003c\/p\u003e\n\n\u003cp\u003ePrecision Engineering: Also known as the SH31, this foot is designed to maintain consistent stitch length across varying material thicknesses.\u003c\/p\u003e\n\n\u003cp\u003eIndustrial Grade Build: Made from hardened steel to resist the heat and friction of high-speed industrial production.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309658976505,"sku":"12393","price":21.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-take-up-lever-12410-for-singer-31-331k-sewing-machine","title":"Take-Up Lever 12410 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eTake-Up Lever (Part #12410) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nEnsure flawless stitch timing and thread tension with this Take-Up Lever (Part #12410). As a critical component of your machine's head assembly, this lever is responsible for pulling thread from the spool and tightening the stitch. Crafted to industrial standards, it ensures your Singer 31 or 331K runs with professional-grade precision.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nSmooth Thread Flow: Features a highly polished eyelet to prevent thread friction, heat buildup, and premature thread breakage during high-speed operation.\u003c\/p\u003e\n\n\u003cp\u003ePrecision Timing: Engineered to the exact weight and dimensions of the original Singer 12410 to maintain the perfect rhythm of the stitching cycle.\u003c\/p\u003e\n\n\u003cp\u003eHeavy-Duty Construction: Forged from high-tensile steel to resist bending and wear, even when working with heavy industrial threads.\u003c\/p\u003e\n\n\u003cp\u003eEliminate Sluggish Performance: Replacing a worn or bent take-up lever restores crisp stitch formation and prevents \"looping\" on the underside of the fabric.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309659042041,"sku":"12410","price":31.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-closed-inside-foot-19364-for-singer-31-331k-sewing-machine","title":"Closed Inside Foot 19364 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eClosed Inside Foot (Part #19364) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nUpgrade your precision sewing with the Closed Inside Foot (Part #19364). Specifically engineered for Singer 31 and 331K industrial machines, this specialized presser foot is essential for professional-grade piping, welting, and edge-stitching operations.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Benefits\u003cbr\u003e\nSuperior Fabric Control: The \"Closed\" design provides maximum surface contact on the inside of the needle, ensuring fabric remains flat and stable during complex maneuvers.\u003c\/p\u003e\n\n\u003cp\u003ePrecision Piping \u0026amp; Welting: Optimized for sewing close to cords and raised edges, providing a clean, tight finish for upholstery and apparel projects.\u003c\/p\u003e\n\n\u003cp\u003eIndustrial Strength: Manufactured from high-quality hardened steel to withstand the high-speed vibrations and pressure of industrial production.\u003c\/p\u003e\n\n\u003cp\u003eSmooth Underside: Features a polished base to glide effortlessly over different textures without snagging or leaving pressure marks.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309659500793,"sku":"19364","price":6.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-outside-foot-19370-for-singer-31-331k-sewing-machine","title":"Outside Foot 19370 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eOutside Foot (Part #19370) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nAchieve professional-grade results with the Outside Foot (Part #19370). Engineered specifically for Singer 31 and 331K industrial sewing machines, this essential component is designed to provide stable, even pressure on the outer side of the needle, making it a must-have for precise edge work and complex assemblies.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nEnhanced Edge Stability: The \"Outside\" design is specifically shaped to guide fabric along seams and edges, ensuring uniform stitch placement and preventing material slippage.\u003c\/p\u003e\n\n\u003cp\u003eOptimized for Piping \u0026amp; Welting: Works seamlessly in coordination with inside feet to handle cords and zippers, providing a clean, professional finish for upholstery and heavy tailoring.\u003c\/p\u003e\n\n\u003cp\u003eIndustrial Durability: Constructed from high-tensile hardened steel to withstand continuous high-speed operation without bending or wearing down.\u003c\/p\u003e\n\n\u003cp\u003eNon-Marring Polished Base: The underside is precision-polished to glide smoothly over delicate leathers, vinyl, and heavy canvases without leaving unwanted tracks.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309659533561,"sku":"19370","price":7.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-slack-thread-retainer-20060-for-singer-31-331k-sewing-machine","title":"Slack Thread Retainer 20060 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eSlack Thread Retainer (Part #20060) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nEnsure consistent stitch quality and eliminate thread tangles with this Slack Thread Retainer (Part #20060). Specifically designed for the Singer 31 and 331K industrial series, this small but critical component manages the thread as it leaves the tension discs, preventing loops and bird-nesting during high-speed sewing.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nStitch Consistency: Effectively manages the \"slack\" thread during the take-up lever's cycle, ensuring each stitch is pulled tight and uniform.\u003c\/p\u003e\n\n\u003cp\u003eTangle Prevention: Keeps the thread in its designated path, significantly reducing the risk of thread breakage or snagging at the top of the machine.\u003c\/p\u003e\n\n\u003cp\u003eIndustrial Strength: Made from high-grade, polished spring steel to maintain its shape and tension even under the stress of continuous industrial use.\u003c\/p\u003e\n\n\u003cp\u003eAnti-Friction Finish: The smooth, snag-free surface allows thread to glide effortlessly, protecting delicate or specialty threads from fraying.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309659566329,"sku":"20060","price":0.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-shuttle-race-body-only-24413-for-singer-31-331k-sewing-machine","title":"Shuttle Race Body Only 24413 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eShuttle Race Body Only (Part #24413) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nRestore the smooth operation of your industrial machine with the Shuttle Race Body (Part #24413). This high-precision component serves as the foundation for the shuttle hook assembly in Singer 31 and 331K models. By providing a perfectly machined track for the shuttle to rotate in, it ensures flawless stitch formation and prevents mechanical jams.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nPrecision Machined Track: Engineered with exact tolerances to ensure the shuttle hook moves with minimal friction, reducing heat and noise during high-speed sewing.\u003c\/p\u003e\n\n\u003cp\u003eIndustrial-Grade Durability: Forged from high-strength alloy steel to resist the constant wear and impact of daily industrial production.\u003c\/p\u003e\n\n\u003cp\u003eFlawless Stitch Formation: A smooth, burr-free race body is essential for preventing skipped stitches and thread shredding.\u003c\/p\u003e\n\n\u003cp\u003eDirect OEM Fit: Manufactured to the exact specifications of the original Singer 24413 part, ensuring a seamless drop-in replacement without the need for modifications.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309659599097,"sku":"24413","price":16.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-shuttle-race-body-only-24415-for-singer-31-331k-sewing-machine","title":"Shuttle Race Body Only 24415 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eShuttle Race Body Only (Part #24415) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nEnsure the mechanical heart of your sewing machine is in top condition with the Shuttle Race Body (Part #24415). This precision-engineered component is the housing for the shuttle hook, providing the smooth, low-friction track necessary for high-speed industrial stitching on Singer 31 and 331K models.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nPrecision-Milled Track: Features a highly polished internal guide that allows the shuttle hook to rotate effortlessly, minimizing heat and mechanical wear.\u003c\/p\u003e\n\n\u003cp\u003eVibration Reduction: Built to exact industrial tolerances to eliminate \"shuttle play,\" which reduces machine noise and ensures more consistent stitch quality.\u003c\/p\u003e\n\n\u003cp\u003eHeavy-Duty Construction: Crafted from hardened steel alloy to withstand the constant friction and high demands of industrial production environments.\u003c\/p\u003e\n\n\u003cp\u003eOptimized Thread Passage: The snag-free finish ensures the thread loop passes around the shuttle without catching, preventing fraying and breakage.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309659631865,"sku":"24415","price":14.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-outside-piping-foot-s34x1-4-for-singer-31-331k-sewing-machine","title":"Outside Piping Foot S34X1\/4 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eOutside Piping Foot (S34X1\/4) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nAdd professional-quality piping to your projects with the Outside Piping Foot (Part #S34X1\/4). This 1\/4\" (6.4mm) specialized presser foot is designed for Singer 31 and 331K industrial machines, allowing you to sew closely and accurately against piping cords for a crisp, tailored look.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nPrecision 1\/4\" Groove: Features a specifically machined channel on the underside to guide 1\/4\" piping or welting cord perfectly, preventing the cord from slipping during stitching.\u003c\/p\u003e\n\n\u003cp\u003eTight Seams: The slim profile allows the needle to penetrate extremely close to the cord, ensuring a tight, professional fit for upholstery and apparel.\u003c\/p\u003e\n\n\u003cp\u003eIndustrial Grade Durability: Manufactured from high-tensile hardened steel, built to withstand the pressure and speed of industrial production.\u003c\/p\u003e\n\n\u003cp\u003eSmooth Material Flow: The polished base ensures the foot glides effortlessly over leather, vinyl, and heavy canvas without snagging or dragging.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309659664633,"sku":"S34X1\/4","price":7.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-outside-piping-foot-s34x1-8-for-singer-31-331k-sewing-machine","title":"Outside Piping Foot S34X1\/8 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eOutside Piping Foot (S34X1\/8) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nAchieve refined, high-precision detailing with the Outside Piping Foot (Part #S34X1\/8). This 1\/8\" (3.2mm) specialized attachment is engineered for Singer 31 and 331K industrial machines, providing the exact clearance needed to sew tight, professional seams around fine piping and welting cords.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nPrecision 1\/8\" Channel: The underside features a meticulously machined groove designed to lock onto 1\/8\" cords, ensuring the piping stays perfectly aligned with the needle.\u003c\/p\u003e\n\n\u003cp\u003eUltra-Close Stitching: Allows for an exceptionally tight fit against the cord, producing the crisp, sharp edges required for high-end tailoring and intricate upholstery.\u003c\/p\u003e\n\n\u003cp\u003eHardened Steel Construction: Built to withstand the rigors of industrial use, this foot resists the friction and heat generated by high-speed sewing.\u003c\/p\u003e\n\n\u003cp\u003eSmooth-Glide Finish: Polished to a mirror-like finish to prevent \"fabric drag\" on sensitive materials like silk, thin leather, or vinyl.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309659697401,"sku":"S34X1\/8","price":9.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-outside-piping-foot-s34x3-16-for-singer-31-331k-sewing-machine","title":"Outside Piping Foot S34X3\/16 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eOutside Piping Foot (S34X3\/16) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nUpgrade your industrial finishing with the Outside Piping Foot (Part #S34X3\/16). This 3\/16\" (4.8mm) specialized attachment is precision-engineered for Singer 31 and 331K machines, providing the perfect balance of control and clearance for medium-weight piping and welting projects.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nPrecision 3\/16\" Groove: Features a deep-milled channel on the base designed to securely guide 3\/16\" cord, ensuring it never slips out from under the foot during high-speed operation.\u003c\/p\u003e\n\n\u003cp\u003eProfessional Edge Work: Allows the needle to stitch extremely close to the piping, resulting in the tight, professional-grade seams found in high-end upholstery and garments.\u003c\/p\u003e\n\n\u003cp\u003eIndustrial Durability: Constructed from heavy-duty hardened steel to resist wear and prevent bending, even when working with thick leathers or multi-layered canvases.\u003c\/p\u003e\n\n\u003cp\u003eFriction-Free Movement: The polished underside glides smoothly over \"tacky\" materials like vinyl and treated fabrics, preventing unappealing feed marks or bunching.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309659730169,"sku":"S34X3\/16","price":9.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-outside-piping-foot-s34x3-8-for-singer-31-331k-sewing-machine","title":"Outside Piping Foot S34X3\/8 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eOutside Piping Foot (S34X3\/8) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nHandle large-scale projects with confidence using the Outside Piping Foot (Part #S34X3\/8). This 3\/8\" (9.5mm) specialized presser foot is engineered for Singer 31 and 331K industrial machines, specifically designed to accommodate extra-thick piping and heavy-duty welting cords.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nExtra-Wide 3\/8\" Channel: Features a wide, precision-milled groove on the underside to capture and guide large 3\/8\" cords, ensuring they stay centered without rolling or shifting.\u003c\/p\u003e\n\n\u003cp\u003eHeavy-Duty Capability: Optimized for thick upholstery and industrial-grade materials where standard feet lack the necessary clearance.\u003c\/p\u003e\n\n\u003cp\u003eProfessional Finish: Enables the needle to stitch tightly against the bulky cord, providing the crisp, structured look required for high-end furniture and automotive trim.\u003c\/p\u003e\n\n\u003cp\u003eIndustrial Strength: Forged from high-tensile hardened steel to withstand the high pressure and vibration of continuous industrial production.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309659762937,"sku":"S34X3\/8","price":9.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-double-piping-foot-set-s35dgx1-4-6mm-for-singer-31-331k-sewing-machine","title":"Double Piping Foot Set S35DGX1\/4 6MM for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eDouble Piping Foot Set (S35DGX1\/4) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nElevate your upholstery and tailoring projects with the Premium Double Piping Foot Set (Part #S35DGX1\/4). This professional-grade set, featuring a 1\/4\" (6mm) spacing, is specifically engineered for Singer 31 and 331K industrial machines. It allows you to sew two parallel rows of piping simultaneously with perfect symmetry and precision.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nDual-Channel Precision: The underside of the feet features two meticulously machined 1\/4\" grooves, ensuring both cords are guided evenly without slipping or overlapping.\u003c\/p\u003e\n\n\u003cp\u003eProfessional \"Double Welt\" Finish: Ideal for creating high-end double piping (commonly used to hide staples or seams in furniture restoration), providing a clean, decorative edge.\u003c\/p\u003e\n\n\u003cp\u003eIndustrial Grade Durability: Crafted from high-tensile hardened steel, this set is built to withstand the high-speed demands and heavy pressures of an industrial sewing environment.\u003c\/p\u003e\n\n\u003cp\u003eSmooth Material Feed: The polished, snag-free base glides effortlessly over heavy fabrics like canvas, velvet, vinyl, and leather.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309659795705,"sku":"S35DGX1\/4","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-double-piping-foot-set-s35dgx3-16-4-8mm-for-singer-31-331k-sewing-machine","title":"Double Piping Foot Set S35DGX3\/16=4.8MM for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eDouble Piping Foot Set (S35DGX3\/16) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nStreamline your decorative upholstery work with the Premium Double Piping Foot Set (Part #S35DGX3\/16). This professional 3\/16\" (4.8mm) set is precision-engineered for Singer 31 and 331K industrial machines, allowing you to create beautiful, symmetrical double welting in a single pass.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nDual 3\/16\" Channels: The base features two perfectly aligned 4.8mm grooves that capture and guide two cords simultaneously, ensuring they stay parallel without shifting.\u003c\/p\u003e\n\n\u003cp\u003eEfficiency \u0026amp; Precision: Specifically designed for \"Double Welt\" applications, where two rows of piping are used to provide a high-end decorative finish or to conceal staples and raw edges.\u003c\/p\u003e\n\n\u003cp\u003eHeavy-Duty Construction: Forged from industrial-grade hardened steel to handle the high-speed vibrations and heavy material thickness typical of upholstery shops.\u003c\/p\u003e\n\n\u003cp\u003eAnti-Friction Polished Base: The smooth underside prevents \"fabric bunching\" and ensures a consistent glide over leather, vinyl, and heavy tapestry fabrics.\u003c\/p\u003e\n\n\u003cp\u003eIdeal Applications\u003cbr\u003e\nThe S35DGX3\/16 Double Piping Set is the preferred choice for:\u003c\/p\u003e\n\n\u003cp\u003eFurniture Trim: Creating the classic double-piping finish used on the edges of upholstered chairs and sofas.\u003c\/p\u003e\n\n\u003cp\u003eCustom Automotive Work: Adding parallel decorative accents to headliners and interior trim.\u003c\/p\u003e\n\n\u003cp\u003eSpecialty Bags: Crafting reinforced, decorative seams on high-end leather goods and heavy canvas bags.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309659828473,"sku":"S35DGX3\/16","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-double-piping-foot-set-s35dgx3-8-9mm-for-singer-31-331k-sewing-machine","title":"Double Piping Foot Set S35DGX3\/8=9MM for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eDouble Piping Foot Set (S35DGX3\/8) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nMaster large-scale decorative trim with the Premium Double Piping Foot Set (Part #S35DGX3\/8). This heavy-duty 3\/8\" (9mm) set is precision-engineered for Singer 31 and 331K industrial machines, providing the necessary clearance and control to sew two large parallel rows of piping in a single, efficient pass.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nDual 9mm Wide Channels: The underside of the foot set features two extra-wide, meticulously machined 3\/8\" grooves to securely guide bulky cords without rolling or overlap.\u003c\/p\u003e\n\n\u003cp\u003eProfessional Double Welt Finish: Perfect for creating large-scale \"Double Welt\" trim used to provide a high-end finish and cover staples on heavy furniture and commercial seating.\u003c\/p\u003e\n\n\u003cp\u003eIndustrial Strength Build: Crafted from high-tensile hardened steel, this set is designed to withstand the high pressure and vibration of heavy-duty industrial production.\u003c\/p\u003e\n\n\u003cp\u003eSmooth Glide Technology: The polished base ensures the feet move effortlessly over thick, textured fabrics like heavy canvas, leather, and upholstery-grade velvet.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309659894009,"sku":"S35DGX3\/8","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-spring-guide-foot-set-u192gtax3-16-mm-for-singer-31-331k-sewing-machine","title":"Spring Guide Foot Set U192GTAX3\/16 mm for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eSpring Guide Foot Set (U192GTAX3\/16) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nAchieve perfectly straight topstitching and edge-seaming with the Premium Spring Guide Foot Set (Part #U192GTAX3\/16). Engineered specifically for Singer 31 and 331K industrial machines, this set features a built-in spring-loaded guide that maintains a consistent 3\/16\" (4.8mm) distance from the fabric edge, ensuring professional-grade uniformity on every seam.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nDynamic Spring Guide: The built-in right-side guide is spring-loaded to compensate for varying material thicknesses and seams, keeping your stitch line perfectly parallel to the edge.\u003c\/p\u003e\n\n\u003cp\u003ePrecision 3\/16\" Offset: Ideal for topstitching, pocket setting, and decorative seaming where a consistent 4.8mm margin is required.\u003c\/p\u003e\n\n\u003cp\u003eSuperior Feeding: Designed to work in tandem (Inside \u0026amp; Outside) to provide a balanced grip, preventing fabric shifting or \"walking\" during high-speed operation.\u003c\/p\u003e\n\n\u003cp\u003eIndustrial Grade Durability: Manufactured from high-strength hardened steel to resist the wear and tear of continuous daily production.\u003c\/p\u003e\n\n\u003cp\u003eAnti-Snag Polished Finish: The smooth underside glides effortlessly over difficult materials like leather, vinyl, and heavy canvas without leaving marks.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309659926777,"sku":"U192GTAX316","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-spring-guide-foot-set-u192gtax1-4-6mm-for-singer-31-331k-sewing-machine","title":"Spring Guide Foot Set U192GTAX1\/4 6mm for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eSpring Guide Foot Set (U192GTAX1\/4) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nMaster the art of perfectly straight seams with the Premium Spring Guide Foot Set (Part #U192GTAX1\/4). This professional 1\/4\" (6mm) set is precision-engineered for Singer 31 and 331K industrial machines. Featuring a dynamic, spring-loaded edge guide, this set ensures a consistent 6mm margin from the edge of your fabric, delivering clean, uniform results on every project.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nSelf-Adjusting Spring Guide: The built-in right-side guide is spring-loaded to automatically adjust to different material thicknesses, allowing you to sew over cross-seams without losing your line.\u003c\/p\u003e\n\n\u003cp\u003ePrecision 1\/4\" Offset: The industry standard for topstitching, flange seams, and pocket setting, providing a professional 6mm distance from the edge.\u003c\/p\u003e\n\n\u003cp\u003eBalanced Feed System: The inside and outside feet work in perfect synchronization to provide a steady grip, preventing fabric layers from shifting or \"creeping\" at high speeds.\u003c\/p\u003e\n\n\u003cp\u003eIndustrial Strength: Constructed from high-tensile hardened steel, designed to withstand the rigors of high-volume production and heavy-duty materials.\u003c\/p\u003e\n\n\u003cp\u003ePolished Smooth Base: Features a snag-free underside that glides effortlessly over leather, denim, vinyl, and upholstery fabrics.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309659959545,"sku":"U192GTAX14","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-spring-guide-foot-set-u192gtalx1-4-6mm-for-singer-31-331k-sewing-machine","title":"Spring Guide Foot Set U192GTALX1\/4 6mm for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eSpring Guide Foot Set (U192GTALX1\/4) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nEnsure flawless accuracy with the Premium Spring Guide Foot Set (Part #U192GTALX1\/4). This professional Left-Side 1\/4\" (6mm) set is precision-engineered for Singer 31 and 331K industrial machines. Featuring a dynamic, spring-loaded left edge guide, this set is indispensable for specialized topstitching and seaming where the guide must track along the left side of the needle.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nLeft-Side Spring Guide: Unlike standard right-side guides, this set features a built-in left-side guide that is spring-loaded to handle varying material heights and cross-seams without lifting the foot.\u003c\/p\u003e\n\n\u003cp\u003ePrecision 1\/4\" Offset: Delivers a consistent 6mm margin from the left edge, perfect for specialized topstitching, decorative seaming, and structural tailoring.\u003c\/p\u003e\n\n\u003cp\u003eSynchronized Feeding: The inside and outside feet are designed to work together, providing balanced pressure that prevents \"fabric creep\" and ensures multi-layered materials feed evenly.\u003c\/p\u003e\n\n\u003cp\u003eIndustrial Build Quality: Forged from hardened steel alloy to withstand the friction and high speeds of professional production environments.\u003c\/p\u003e\n\n\u003cp\u003eHigh-Polish Base: The underside is finished to a mirror-smooth surface, allowing it to glide over \"sticky\" materials like vinyl, leather, and synthetic upholstery without dragging.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309659992313,"sku":"U192GTALX14","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-needle-bar-thread-guide-4302-08030-for-singer-31-331k-sewing-machine","title":"Needle Bar Thread Guide 4302=08030 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eNeedle Bar Thread Guide (Part #4302 \/ 08030) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nMaintain perfect thread control and prevent skipped stitches with this Needle Bar Thread Guide (Part #4302 \/ 08030). This essential component attaches directly to the needle bar of your Singer 31 or 331K, acting as the final guiding point before the thread enters the needle eye. Precision-crafted for industrial reliability, it ensures your thread stays perfectly aligned during high-speed operation.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nOptimized Thread Path: Aligns the thread directly with the needle eye to reduce friction and prevent thread twisting, which is a common cause of breakage.\u003c\/p\u003e\n\n\u003cp\u003eAnti-Friction Polished Finish: The eyelet is highly polished to ensure snag-free movement, protecting delicate or specialty threads from fraying at high RPMs.\u003c\/p\u003e\n\n\u003cp\u003ePrecision Fit: Manufactured to the exact specifications of the original Singer 4302 (also cataloged as 08030), ensuring a secure, vibration-resistant mount on the needle bar.\u003c\/p\u003e\n\n\u003cp\u003eIndustrial Durability: Constructed from hardened steel to resist the constant wear and \"thread-sawing\" effect caused by abrasive industrial threads.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309660025081,"sku":"4302","price":1.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-needle-bar-thread-guide-new-style-22798-for-singer-31-331k-sewing-machine","title":"Needle Bar Thread Guide (New Style) 22798 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eNeedle Bar Thread Guide - New Style (Part #22798) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nUpgrade your machine’s thread handling with the Premium \"New Style\" Needle Bar Thread Guide (Part #22798). Specifically designed for the Singer 31 and 331K industrial series, this updated guide offers improved thread stability and a more efficient pathing system compared to older models. It is an essential component for ensuring high-speed reliability and precise stitch formation.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\n\"New Style\" Engineering: Features an updated geometry designed to reduce thread \"slap\" and vibration as the needle bar moves at high velocities.\u003c\/p\u003e\n\n\u003cp\u003eReduced Thread Friction: The guide is precision-polished to a mirror finish, allowing thread to glide effortlessly without snagging, fraying, or heating up—critical for synthetic and bonded threads.\u003c\/p\u003e\n\n\u003cp\u003eEnhanced Loop Stability: By keeping the thread closer to the needle bar, it helps maintain a consistent loop for the shuttle hook to catch, significantly reducing skipped stitches.\u003c\/p\u003e\n\n\u003cp\u003eVibration Resistant: Built from high-grade industrial steel, this guide is designed to stay firmly in place despite the constant reciprocating motion of the needle bar.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309660057849,"sku":"22798","price":3.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-thread-guide-screw-233-for-singer-31-331k-sewing-machine","title":"Thread Guide Screw 233 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eThread Guide Screw (Part #233) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nMaintain the structural integrity of your thread handling system with this Thread Guide Screw (Part #233). Specifically designed for the Singer 31 and 331K series, this precision-machined fastener is essential for securing the thread guides to the needle bar or machine head, ensuring they remain vibration-free during high-speed industrial operation.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nPrecision-Cut Threads: Engineered with the exact pitch and diameter required for Singer Industrial machines, ensuring a perfect fit without stripping or damaging the internal housing.\u003c\/p\u003e\n\n\u003cp\u003eVibration Resistance: Built to withstand the constant reciprocating motion of the needle bar, keeping your thread guides firmly in place to prevent timing errors.\u003c\/p\u003e\n\n\u003cp\u003eHardened Industrial Steel: Crafted from high-tensile steel with a protective finish to resist corrosion and wear from frequent adjustments.\u003c\/p\u003e\n\n\u003cp\u003eLow-Profile Head: Designed to sit flush or at the correct height to avoid interfering with the thread path or other moving mechanical parts.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309660123385,"sku":"233","price":0.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-check-spring-43946-8511-for-singer-31-331k-sewing-machine","title":"Check Spring 43946=8511 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eCheck Spring (Part #43946 \/ 8511) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nEnsure perfect tension and precise loop formation with the Check Spring (Part #43946 \/ 8511). This critical tension component is engineered specifically for Singer 31 and 331K industrial machines. It acts as the buffer for the upper thread, taking up the slack during the needle's descent and ensuring the thread is controlled at the exact moment the hook catches the loop.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nHigh-Resilience Spring Steel: Manufactured from premium-grade tempered steel, providing the perfect balance of flexibility and \"snap-back\" required for high-speed industrial sewing.\u003c\/p\u003e\n\n\u003cp\u003eConsistent Tension Control: Regulates thread slack to prevent \"bird-nesting\" and looping on the underside of the fabric.\u003c\/p\u003e\n\n\u003cp\u003ePrecision Coil Geometry: Designed to fit perfectly into the tension assembly of the Singer 31\/331K series, ensuring smooth operation without binding or sticking.\u003c\/p\u003e\n\n\u003cp\u003eFatigue Resistant: Built to withstand millions of cycles, maintaining its tension strength even under the constant stress of heavy-duty production.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309660156153,"sku":"43946","price":0.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-tension-assembly-44118-139738-for-singer-31-331k-sewing-machine","title":"Tension Assembly 44118=139738 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eTension Assembly (Part #44118 \/ 139738) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nAchieve flawless stitch consistency with the Tension Assembly (Part #44118 \/ 139738). This complete upper tension unit is precision-engineered for Singer 31 and 331K industrial machines. As the \"brain\" of your thread delivery system, this assembly regulates the flow of the upper thread, ensuring perfectly balanced stitches across a wide variety of fabric weights and industrial applications.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nComplete Professional Unit: Includes the tension post, discs, beehive spring, check spring, and thumb nut—everything required for a full system overhaul.\u003c\/p\u003e\n\n\u003cp\u003ePrecision-Ground Tension Discs: Features ultra-smooth, mirror-polished discs that provide even pressure on the thread, preventing erratic tension spikes and thread shredding.\u003c\/p\u003e\n\n\u003cp\u003eResponsive Check Spring: Equipped with a high-resilience spring (43946\/8511) to control thread slack during the needle's descent, ensuring crisp loop formation.\u003c\/p\u003e\n\n\u003cp\u003eMicro-Adjustable Control: The fine-thread thumb nut allows for granular adjustments, making it easy to switch between lightweight synthetics and heavy-duty bonded threads.\u003c\/p\u003e\n\n\u003cp\u003eIndustrial Grade Build: Constructed from hardened steel and corrosion-resistant alloys to withstand the high-speed friction and heat of continuous industrial use.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309660188921,"sku":"44118","price":6.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"premium-replacement-inside-piping-foot-s33-for-singer-31-331k-sewing-machine","title":"Inside Piping Foot S33 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eInside Piping Foot (Part #S33) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nAchieve professional-grade welting results with the Inside Piping Foot (Part #S33). Specifically engineered for Singer 31 and 331K industrial sewing machines, this specialized presser foot is designed to work in conjunction with an outside piping foot to provide maximum control over the cord during high-speed production.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nPrecision-Milled Groove: The underside of the foot features a deep, smooth channel designed to cradle the piping cord, preventing it from rolling or shifting while the needle stitches.\u003c\/p\u003e\n\n\u003cp\u003eBalanced Feeding: Engineered to provide even pressure across the fabric and cord, ensuring that the material feeds through the machine without \"walking\" or creating uneven seams.\u003c\/p\u003e\n\n\u003cp\u003eIndustrial Hardened Steel: Manufactured from high-tensile steel to resist the heat and friction of industrial-scale projects, ensuring a long service life in a production environment.\u003c\/p\u003e\n\n\u003cp\u003eSmooth-Finish Base: Highly polished to glide over diverse materials including vinyl, heavy canvas, leather, and upholstery fabrics without marring or snagging.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48309660221689,"sku":"S33","price":5.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850"},{"product_id":"genuine-62740-bc3115-bobbin-case-for-singer-31-331k-sewing-machine","title":"62740=BC3115 Bobbin Case for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eBobbin Case (Part #62740 \/ BC-31-15) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nEnsure the highest level of stitching precision with the Bobbin Case (Part #62740). Specifically engineered for the Singer 31 and 331K industrial series, this bobbin case is the gold standard for maintaining consistent lower thread tension. Often referred to by the industry code BC-31-15, this component is essential for heavy-duty sewing where stitch reliability is non-negotiable.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nPrecision Tension Regulation: Equipped with a high-grade tension spring that provides smooth, uniform resistance, eliminating \"bird-nesting\" and puckered seams.\u003c\/p\u003e\n\n\u003cp\u003eOEM Specification Fit: As a genuine-spec component, it offers the exact dimensions required for a perfect seat within the shuttle race, reducing vibration and mechanical noise.\u003c\/p\u003e\n\n\u003cp\u003eHardened Steel Construction: Built to withstand the high-speed rotation and friction of industrial production without warping or losing tension accuracy.\u003c\/p\u003e\n\n\u003cp\u003eAnti-Backlash Design: Helps prevent the bobbin from over-spinning when the machine stops suddenly, ensuring your next stitch starts with perfect tension.\u003c\/p\u003e","brand":"Towa","offers":[{"title":"Default Title","offer_id":48309660254457,"sku":"62740","price":6.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Genuine_Parts.jpg?v=1776585822"},{"product_id":"genuine-steel-spool-with-slot-2996-for-singer-31-331k-sewing-machine","title":"Steel Spool with Slot 2996 for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eSteel Bobbin with Slot (Part #2996) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nEnsure peak performance in your industrial sewing setup with the Steel Bobbin (Part #2996). Specifically designed for the oscillating shuttle systems of Singer 31 and 331K machines, these bobbins are engineered for high-speed durability and precise thread delivery. Featuring the classic \"slotted\" design, they allow for easy thread anchoring and consistent winding.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nPrecision-Machined Steel: Unlike plastic or lightweight aluminum alternatives, these steel bobbins provide the necessary weight and balance for stable rotation within the shuttle race at high industrial speeds.\u003c\/p\u003e\n\n\u003cp\u003eIntegrated Thread Slot: The vertical slot on the hub allows for quick and secure anchoring of the thread when starting the winding process, preventing slippage.\u003c\/p\u003e\n\n\u003cp\u003eSmooth-Finish Flanges: Each bobbin is polished to remove burrs and sharp edges, ensuring the thread pays out smoothly and prevents snagging or breakage inside the bobbin case.\u003c\/p\u003e\n\n\u003cp\u003ePerfect Dimensional Accuracy: Manufactured to the exact OEM specifications for the Singer 2996, ensuring a perfect fit in the bobbin case and preventing \"wobble\" that can cause uneven tension.\u003c\/p\u003e","brand":"Seki","offers":[{"title":"Default Title","offer_id":48309660287225,"sku":"2996","price":0.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Genuine_Steel_Spool_with_Slot_2996_for_Singer_31_331K_Sewing_Machine.png?v=1778565227"},{"product_id":"screw-for-thread-guide-2","title":"Screw (For Thread Guide) 233 for Singer 15-30 Sewing Machines","description":"\u003cp\u003eReplacement screw, nut, washer, or spring for sewing machines. Essential hardware for securing mechanical components and maintaining proper machine adjustment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e\u003cbr\u003eReplacement screw for industrial and household sewing machines. Designed for reliable performance and long service life.Features:Direct replacement for original partCompatible with major sewing machine brandsPrecision manufactured for consistent performanceEasy installationPackage Includes:1 × SCREW\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCorrect thread size and head style for listed models\u003c\/li\u003e\n\u003cli\u003eDurable metal construction\u003c\/li\u003e\n\u003cli\u003eDirect replacement for lost or damaged originals\u003c\/li\u003e\n\u003cli\u003eSuitable for repair and reassembly\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003e1 × SCREW (For Thread Guide) (Part #: 233)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHandling \u0026amp; Shipping:\u003c\/strong\u003e\u003cbr\u003eShips from USA stock when available. Professional packaging for safe delivery during transit.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48491945197817,"sku":"233","price":1.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Screw_ForThreadGuide_233forSinger15-30SewingMachines.png?v=1781663228"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/collections\/Singer_31_331K.png?v=1765367285","url":"https:\/\/empenzoamericas.com\/collections\/singer-31-331k-parts.oembed?page=2","provider":"Empenzo Americas Corp.","version":"1.0","type":"link"}