1-8 x 1 3/4 Socket Cap Screw Alloy

1/4 x 1 3/4 Tie Wire Split Drive Anchor Zinc Plated (100)

5/32 Cobalt Heavy Duty Jobber Drill Bit

7/8-14 x 3 1/2 Socket Cap Screw Alloy

7/8-14 Nylon Insert Locknut 18-8 SS 18" Long Boy Drill Bits 1-8 x 1 3/4 Socket7 8 14 Nylon Insert Locknut 18 8 SS . 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 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, however, nylon will begin to deteriorate at temperatures from 150? 350?. 18 8