7/16″-20 18-8 Stainless Steel Fine Thread Nylon Insert Lock Nuts PM785159169235

Description

Diameter: 7/16″
Diameter 2: 23/32″
Thickness: 15/32″
Material: Stainless Steel
Driver Type: 5/8″ Wrench
Thread Size: 20 (Fine)
Hardness: 18-8
Style: Waxed Nylon Insert
Type: Lock Nut

Box of 8.

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