1/2 x 4 Socket Shoulder Screw Plain 8-8 9 grade indicates a tensile

9 grade indicates a tensile strength of 1040 MPa

These 1/2-13 x 3 Heavy Hex Structural Bolts are designed for heavy-duty applications and meet ASTM A325 Type 1 specifications

This 1/4-20 x 1/2 Slotted Flat Undercut Machine Screw is made of zinc-plated steel and has a fully threaded body

These bolts are made in North America and meet ASTM A325 specifications

1/2 x 4 Socket Shoulder Screw Plain 8-8 9 grade indicates a tensile1 2 x 4 Socket Shoulder Screw Plain is a type of screw that has a hexagonal head and a threaded shank. The head is designed to be turned with a socket wrench or hex key, and the shank is designed to be screwed into a hole. The shoulder of the screw is a cylindrical section that is located between the head and the shank. It is designed to bear the load of the screw and to prevent the screw from being pulled through the hole. 1 2 x 4 Socket Shoulder