3/8"-16 Black Chrome Plated Steel Coarse Thread Acorn Nuts

Diameter: 3/8"
Thickness: 1/2"
Material: Steel
Finish: Black Chrome
Driver Type: 9/16" Wrench
Thread Size: 16 (Coarse)
Shape: Acorn
Type: Cap Nut

Box of 5.

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