1/2″-20 18-8 Stainless Steel Fine Thread Nylon Insert Lock Nuts

Description

Diameter: 1/2″
Diameter 2: 7/8″
Thickness: 19/32″
Material: Stainless Steel
Driver Type: 3/4″ Wrench
Thread Size: 20 (Fine)
Hardness: 18-8
Style: Waxed Nylon Insert
Type: Lock Nut

Box of 6.

A lock nut is a nut that resists loosening under vibrations and torque.