Imperial Square Bolt Partial Thread Plain Alloy Steel 5/16-18 * 3-1/2" Grade 2

This square bolt has a length of 3-1/2" with a threading of 5/16-18 [Partially Threaded]. It is made of plain alloy steel and thus provides low resistance to corrosion in dry and wet environments.

The Grade 2 increases its strength against the pressure and has a tensile strength and hardness of 60,000 psi | Rockwell B69.8. Furthermore, it features a shear strength of 36,000 psi.

UNC | Coarse threads are an industry standard. These bolts are classified as ASTM A307 and comply with dimensional standards.