5/16″-24 Zinc Plated Grade 2 Steel Fine Thread Kep Lock Nuts

Description

Diameter: 5/16″
Diameter 2: 9/16″
Thickness: 17/64″
Material: Steel
Finish: Zinc
Driver Type: 1/2″ Wrench
Thread Size: 24 (Fine)
Hardness: Grade 2
Style: Kep
Type: Lock Nut
Washer Diameter: 19/32″

Box of 12.

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