5/8-18 x 4 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (80)

1/2-13 x 3 Grade 8 Hex Cap Screw Plain Domestic USA (200)

All timber bolts

3/4-10 x 15 A307A Hex Bolt Plain Steel

1 1/8-7 x 4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (25) 1 1/2-6 A307A Hex Bolts Zinc Plated 5/8-18 x 4 1/2 Grade1 1 8 7 x 4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (25) . 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