Metric Nylon Insert Lock Nuts (DIN 985), A2-70 Stainless

METRIC STAINLESS A2 70 NYLON INSERT THIN LOCKNUT, DIN 985

Metric nylon inset lock nuts are basically a 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 of the screw when it's subject to vibration.