Zinc plated material will meet or exceed ASTM F1941

Typical hardness will range from HRB 69-100 and a minimum tensile strength of 60

A307 Grade A Carriage Bolts are manufactured from low carbon steel to meet or exceed ASTM A307 Grade A

Hot-Dip Galvanized material will meet or exceed ASTM A153

Our Grade 5 material meets or exceeds SAE J429 Grade 5 specifications

1-14 x 4 Grade 5 Hex Cap Screw Zinc Plated 5/8-11 A307 Grade A Carriage Bolts Zinc Plated Zinc plated material will meet1 14 x 4 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 inch