{"product_id":"genuine-tension-thumb-nut-20225-for-seiko-lsw-6lg-6lg-t-6lg-ta-7lg-7lg-t-7lg-ta-sewing-machine","title":"Genuine Tension Thumb Nut 20225 for Seiko LSW-6LG, 6LG-T, 6LG-TA, 7LG, 7LG-T, 7LG-TA Sewing Machine","description":"\u003cp\u003eGenuine Seiko Tension Thumb Nut (Part #20225)\u003cbr\u003e\nAchieve precise, repeatable thread control with the Genuine Seiko Tension Thumb Nut (Part #20225). This authentic adjustment component is the primary interface for fine-tuning the upper thread tension on the Seiko LSW long-arm industrial series.\u003c\/p\u003e\n\n\u003cp\u003eThe tension thumb nut is responsible for applying calibrated pressure to the tension spring and discs. In heavy-duty sewing—such as automotive upholstery, sails, or heavy webbing—even a half-turn can be the difference between a perfect lockstitch and a loose seam. This genuine Seiko part features a knurled grip and precision-cut internal threads designed to hold its position under the high-vibration environment of 2,500+ SPM (stitches per minute) operation.\u003c\/p\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":47746856878329,"sku":"20225","price":3.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Seiko_Genuine_Parts.jpg?v=1773475037","url":"https:\/\/empenzoamericas.com\/products\/genuine-tension-thumb-nut-20225-for-seiko-lsw-6lg-6lg-t-6lg-ta-7lg-7lg-t-7lg-ta-sewing-machine","provider":"Empenzo Americas Corp.","version":"1.0","type":"link"}