1 Piece Per Pack
Diameter: 5/16"
Diameter 2: 9/16"
Thickness: 17/64"
Material: Steel
Finish: Zinc
Driver Type: 1/2" Wrench
Thread Size: 18 (Coarse)
Hardness: Grade 2
Style: Kep
Type: Lock Nut
Washer Diameter: 19/32"
A lock nut is a nut that resists loosening under vibrations and torque.