Grade 2 Finished Hex Nuts are manufactured from low carbon steel

3/8 x 3 Titen HD Concrete Anchor Zinc Plated (50)

F436 flat washers are manufactured from carbon steel to meet or exceed ASTM F436

and the jaws open to a lock position when the screw is inserted

175 inches

1 1/8-12 Nylon Insert Locknut Zinc Plated 1-14 Grade 8 Hex Cap Screws Yellow Zinc Plated Grade 2 Finished Hex Nuts1 1 8 12 Nylon Insert Locknut Zinc Plated . Nylon insert locknuts are hex nuts with a nylon filled collar. When a screw reaches the collar, the threads and nylon form a tight, frictional fit restricting movement of the screw when it is subjected to vibration. Designed to be used with like material machine screws and bolts, nylon insert locknuts can be reused more times than a two way reversible nut, however, nylon will begin to deteriorate at