Genuine Juki Upper Knife Screw (Part #SS-9090813-TP). This authentic OEM hex-head bolt is the heavy-duty fastener specifically engineered to secure the upper knife to its clamp on the Juki MO-6700 and MO-6800 Series.

Critical Fastening Precision
In industrial overlocking, the upper knife vibrates thousands of times per minute. The SS-9090813-TP is manufactured to Juki’s exact structural specifications, providing the high-tensile strength and vibration resistance required to keep the blade from shifting during high-speed production.

Why Choose the Genuine SS-9090813-TP Screw?
High-Tensile Steel: Forged from hardened industrial alloy to prevent stretching or snapping under the high torque required for a secure 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 7,000+ RPM operation.

Exact Head Geometry: The hex-head is machined to fit standard Juki technician tools perfectly, 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 during double shifts.

✔ 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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⚠️ Please confirm your machine model before ordering