Genuine Juki Upper Knife Screw (Part #SS-9111610-SP). This authentic OEM hexagonal bolt is the heavy-duty fastener specifically engineered to secure the upper knife to the clamp on the Juki MO-6714S Series.

Critical Fastening Precision
In high-speed 4-thread overlocking, the upper knife vibrates thousands of times per minute. The SS-9111610-SP is manufactured to Juki’s exact structural specifications, providing the high-tensile strength and vibration resistance required to keep the trimming blade from shifting during 7,000+ RPM production.

Why Choose the Genuine SS-9111610-SP Screw?
High-Tensile Industrial Steel: Forged from hardened alloy to prevent stretching or snapping under the high torque required for a secure, industrial-grade blade hold.

Vibration-Resistant Threading: Features precision-cut threads designed to "lock" within the Juki upper knife clamp, preventing the screw from backing out during long production shifts.

Exact Hex Head Geometry: Machined to fit standard Juki technician wrenches perfectly, significantly reducing the risk of "rounding off" the head during frequent blade changes.

OEM Material Compatibility: Engineered with the correct thermal expansion properties to match Juki clamps, ensuring the grip remains constant even as the machine heats up.

✔ Free shipping on orders over $99
✔ Ships from our USA (Georgia) office when in stock
✔ Weekly restocking from Japan, China, Bangladesh, and Turkey warehouses
✔ 3–7 business days handling time
✔ Compatible with multiple industrial sewing machines
✔ Carefully inspected before shipment

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