3/8″-16 Black Chrome Plated Steel Coarse Thread Acorn Nuts (5 pcs.)
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.