Monster Fastener Zinc Plated Grade 8 Steel Coarse Thread Nylon Insert Lock Nuts

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

Diameter: 1/4"
Diameter 2: 1/2"
Thickness: 21/64"
Material: Steel
Finish: Yellow Zinc
Driver Type: 7/16" Wrench
Thread Size: 20 (Coarse)
Hardness: Grade 8
Style: Nylon Insert
Type: Lock Nut

Diameter: 3/8"
Diameter 2: 21/32"
Thickness: 15/32"
Material: Steel
Finish: Yellow Zinc
Driver Type: 9/16" Wrench
Thread Size: 16 (Coarse)
Hardness: Grade 8
Style: Nylon Insert
Type: Lock Nut