E-Z LOK 329-006 #6-32 carbon-steel refill inserts
Check compatibility
E-Z LOK 329-006 takes a #6-32 fastener and has a 1/4-20 exterior. Check both threads on the drawing when comparing the refill to other small solid inserts.
Questions before ordering
Why does the listing also mention 1/4-20?
The 1/4-20 thread is on the outside of the insert. #6-32 identifies the inside thread your fastener will engage.