S02637-001 Fix Knife Screw for Jack F4/F5/F6 Machine

S02637-001 Fix Knife Screw

This fix knife screw secures the stationary (fixed) knife blade in place on the thread trimming mechanism, keeping cuts clean and precise.

Fits

• Jack F4, F5, F6 single needle lockstitch machines with auto-trimmer

Why Replace It

A loose or stripped fix knife screw lets the blade shift out of position, causing ragged thread cuts or trimmer misfires. Replacing the screw restores a clean, reliable cut every time.

अक्सर पूछे जाने वाले प्रश्न

My auto-trimmer leaves ragged thread ends — is this the fix?
A loose fix knife screw is a common cause — it lets the blade drift out of alignment with the moving knife, so cuts come out uneven or incomplete.