Galvanized nuts are over tapped per ASTM A563

3/4-10 x 11 A307 Grade A Carriage Bolt HDG

brass and plastic

3/4 x 6 Hex Lag Screw Hot Dipped Galvanized

2 1/4-8 A194 2H Heavy Hex Nut Hot Dipped Galvanized fully-threaded Galvanized nuts are over tapped2 1 4 8 A194 2H Heavy Hex Nut Hot Dipped Galvanized . A194 2H Heavy Hex Nuts are manufactured from 1045 steel to meet or exceed ASTM A194 Grade 2H. Hot Dip Galvanized material will meet or exceed ASTM A153 and or ASTM F2329. Galvanized nuts are over tapped per ASTM A563. Typical hardness is HRC 24 35 for diameters up to 1 1 2 inches, HRB 95 HRC 35 for diameters over 1 1 1 2 inches. Proof load strength is 175,000 psi.