Details
Sewing machine thumb screws with slot : (made in Taiwan)
9/64-40 : 9/64" (3.5mm) thread diameter, 40 threads per inch, Tap #503
Overall length : 14 mm, Thread length : 6 mm
Description : 1. Fits virtually all home and industrial sewing machines
2. Attaches presser foot to foot bar.
3. Attaches folders, binders etc. to base (bed)
of sewing machines.
