1-8 x 10 Grade 5 Hex Cap Screw Zinc Plated

3/4-10 x 9 A307 Grade A Carriage Bolt Zinc Plated

1-8 x 2 1/4 Grade 5 Hex Cap Screw Zinc Plated

Hot-Dip Galvanized material will meet or exceed ASTM A153

5/8-11 x 12 A307 Grade A Carriage Bolt Zinc Plated

1-8 x 4 1/2 Grade 5 Hex Cap Screw Zinc Plated 5/8-11 A307 Grade A Carriage Bolts Zinc Plated 1-8 x 10 Grade 51 8 x 4 1 2 Grade 5 Hex Cap Screw Zinc Plated . Grade 5 Hex Cap Screws are manufactured from medium carbon steel. Our Grade 5 material meets or exceeds SAE J429 Grade 5 specifications. All products are manufactured with rolled threads. Zinc plated material meets or exceeds ASTM F1941. Typical hardness on diameters 1 4 to 1 inch is HRC 25 34. On diameters over 1 inch to 1 1 2 hardness will range from HRC 19 30. Tensile strength for diameters 1 4 to 1