2-4 1/2 A563 Grade A Heavy Hex Nut Plain

tamper-proof

tie-wire or slotted hex head styles

service pros and even do-it-yourself enthusiasts with fasteners and accessories that meet the highest quality standards and that allow them to do their best work

3-4 A563 Grade A Heavy Hex Nut Hot Dipped Galvanized fully-threaded 2-4 1/2 A563 Grade A3 4 A563 Grade A Heavy Hex Nut Hot Dipped Galvanized . Grade A Heavy Hex Nuts are manufactured from low carbon steel, 1008 1010 for sizes up to 1 inch (cold formed) and 1045 steel for sizes over 1 inch (hot formed). Material is manufactured to meet or exceed ASTM A563 Grade A. Zinc plated material will meet or exceed ASTM F1941. Hot Dip Galvanized material will meet or exceed ASTM A563. Typical hardness is HRB 68 HRC 32. Proof load strength will meet