
Nut-Locking. The manufacturer has changed vendors and the part may vary in character. Some do not have a nylon insert, however the nut is a locking type.

Lock nut

Nut centerlock

Nut.hex.flange.1/4-20

Flange nut pm

Nut

Jam lock nut, 3/8 - 16

Nut-hex acorn

Nut-nylon lock
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