5/16"-18 Nickel Plated Steel Coarse Thread Acorn Cap Nuts (8 pcs.)

Diameter: 5/16"
Thickness: 17/32"
Material: Steel
Finish: Nickel
Driver Type: 1/2" Wrench
Thread Size: 18 (Coarse)
Shape: Acorn
Type: Cap Nut

Box of 8.

A closed nut having a dome-like cap over the back, protruding part of the engaged screw or bolt. Also called an acorn nut.