1/4″-20 Chrome Grade 2 / A307 Acorn Cap Nuts (10 pcs.)
Diameter: 1/4″ Thickness: 21/32″ Material: Steel Finish: Chrome Driver Type: 7/16″ Wrench Thread Size: 20 (Coarse) Shape: High Crown Acorn Hardness: Grade 2 / A307 Type: Cap Nut Box of 10. A closed nut having a dome-like cap over the back, protruding part of the engaged screw or bolt. Also called an acorn nut.