3/8-16 Serrated Flange Hex Lock Nuts Grade 5 Zinc, Pkg of 1000

5/16-18 Nylon Insert Flange Stop Hex Lock Nut Zinc. Hex head screws are designed to be driven by a wrench or pneumatic tools.

External tooth lock nuts are nuts attached with lock washers typically used to help with convenience of assembly.

3/4-10 Nylon Insert Hex Locknut Grade 8 Zinc Yellow. Hex head screws are designed to be driven by a wrench or pneumatic tools.

1/4-20 Nylon Insert Flange Stop Hex Lock Nut Zinc. Hex head screws are designed to be driven by a wrench or pneumatic tools.

Nylon Lock Nuts contain a nylon collar insert to help prevent turning. The insert deforms elastically over screw threads. The nylon insert applies a compressive force against the screw to lock the nut.