The high strength

Hot-Dip Galvanized material will meet or exceed ASTM A563

1-8 x 4 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (30)

1 1/8-7 x 8 Grade 8 Hex Cap Screw Plain Domestic USA (5)

7/16-20 x 2 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (50) 5/8-18 Hex Cap Screws 316 Stainless Steel The high strength7 16 20 x 2 1 4 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