Galvanized nuts are over tapped per ASTM A563

3/4-10 x 3 3/4 A325 Type 1 Heavy Hex Bolt Hot Dipped Galvanized (75)

7/16-14 x 6 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (125)

3/4-10 x 2 Socket Cap Screw Zinc

9/16-18 x 1 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (275)

7/8-9 x 3 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (50) 7/16-20 Flat Socket Cap Screws Alloy Galvanized nuts are over tapped7 8 9 x 3 1 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (50) . Grade 8 Hex Cap Screws are manufactured in the USA from medium carbon alloy steel. In diameters 1 4 to 1 1 2 inches our Grade 8 material meets or exceeds SAE J429 Grade 8 specifications. Diameters over 1 1 2 inches meet or exceed ASTM A354 Grade BD. All material is manufactured with rolled threads. Yellow zinc plated bolting will meet or exceed ASTM F1941. Typical hardness on