7/16″-20 18-8 Stainless Steel Fine Thread Acorn Cap Nuts (5 pcs.)
Diameter: 7/16″ Diameter 2: 23/32″ Thickness: 23/32″ Material: Stainless Steel Driver Type: 5/8″ Wrench Thread Size: 20 (Fine) Shape: Acorn Hardness: 18-8 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.