5/16-24 x 4 Grade 5 Hex Cap Screw Plain Domestic USA (50)

threaded full length

5/8-11 x 6 Grade 8 Hex Cap Screw Plain Domestic USA (25)

7/16-20 x 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25)

5/16-18 x 2 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (700) 1/4-20 L9 Hex Cap Screws Yellow Zinc Plated - Domestic USA 5/16-24 x 4 Grade 55 16 18 x 2 1 4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (700) . 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