Product Description
10112016 Hook Stopper
This hook stopper holds the rotary hook assembly in its correct position, keeping hook rotation stable and properly timed with needle movement.
Fits
- Jack F4, F5, F6 and JUKI single needle lockstitch machines
Why Replace It
A worn hook stopper lets the hook assembly shift slightly out of position, which can throw off needle-to-hook timing and cause skipped stitches.
FAQ
Can a loose hook stopper cause thread breaks too?
Yes — mistimed hook engagement doesn’t just skip stitches, it can also catch and break thread inconsistently during stitch formation.
