3/4-10 x 9 A307A Hex Bolt Zinc Plated

5/16-24 x 3 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (500)

the hardness rating is HRC 24-35

3/8-16 x 1 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (900)

1/2-13 x 3 1/4 Grade 8 Hex Cap Screw Plain Domestic USA (175)

5/16-18 x 1 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (1100) 5/16 Cotter Pins 18-8 Stainless Steel 3/4-10 x 9 A307A Hex5 16 18 x 1 1 4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (1100) . 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