3/8″-24 Polished 18-8 Stainless Steel Fine Thread Acorn Cap Nuts (5 pcs.)
Diameter: 3/8″ Diameter 2: 5/8″ Thickness: 1-3/32″ Material: Stainless Steel Finish: Polished Driver Type: 9/16″ Wrench Thread Size: 24 (Fine) Shape: High Crown 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.