5/16″-24 18-8 Stainless Steel Fine Thread Serrated Lock Nuts

Description

Diameter: 5/16″
Diameter 2: 9/16″
Thickness: 9/32″
Material: Stainless Steel
Driver Type: 1/2″ Wrench
Thread Size: 24 (Fine)
Hardness: 18-8
Style: Serrated
Type: Lock Nut
Flange Diameter: 21/32″

Box of 6.

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