Hex nut with a nylon-filled collar at its back end. When a screw reaches the collar, the threads and nylon form a tight, frictional fit, restricting movement on the screw when it is subjected to vibration.


Designed to be used with like-material machine screws and bolts. It is able to be reused more times than a two-way reversible nut. Nylon will being to deteriorate at temperatures from 150-300F.

Clearance pricing is limited to current inventory in-stock. No backorders will be accepted at clearance price. Call 1-866-501-9504 for a quote.

M4X.7 Nylock Nut Steel 8 Black Zinc DIN985SKU: # M50300Quantity Available: 23
$0.08 $0.10