Unique 4-corner thread form with raised-ridge technology greatly reduces driving torque

A new plating that is 7x more corrosion resistant than standard zinc plating

split bolt anchor

Notched threads for cutting into concrete

7/16 x 12 High Speed Aircraft Bit Cobalt

1-8 x 5 1/2 A307A Hex Bolt Zinc Plated 1 1/8-7 Socket Set Screws Cup Point Alloy Unique 4-corner thread form with1 8 x 5 1 2 A307A Hex Bolt Zinc Plated . A307A Hex Bolts are manufactured from low carbon steel, typically 1015 1022. Our A307A bolting meets or exceeds ASTM A307 Grade A. Material is manufactured with rolled threads. Zinc plated material meets or exceeds ASTM F1941. Tensile strength will meet or exceed 60,000 psi.