The SS-6152440-SP Screw is a high-precision mechanical fastener designed specifically for the Juki MB-372 and MB-373 button stitching machines. This specialized screw serves as the needle driving pulley clutch screw (also commonly referred to as a cork screw in technical manuals), playing a vital role in the engagement and disengagement of the machine’s drive system.

Manufactured from hardened industrial steel, the SS-6152440-SP is built to handle the high torque and constant vibrations of industrial sewing environments. A worn or damaged clutch screw can lead to slipping in the needle drive or timing issues, which can cause needle breakage and poor stitch quality. Replacing your old hardware with this genuine-spec Juki component ensures your button stitcher maintains its factory-standard mechanical timing and operational safety.

Technical Specifications:

• Part Number: SS-6152440-SP

• Part Name: Needle driving pulley clutch screw / Cork screw

• Compatibility: Juki MB-372 and Juki MB-373 series.

• Material: Hardened Industrial Steel for maximum durability.