#6-32 Zinc Grade 2 Nylon Insert Lock Nuts (10 pcs.)

Diameter: #6
Diameter 2: 11/32"
Thickness: 9/64"
Material: Steel
Finish: Zinc
Driver Type: 5/16" Wrench
Thread Size: 32 (Coarse)
Hardness: Grade 2
Style: Thin Pattern Nylon Insert
Type: Lock Nut

Box of 10.

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