3/8-16 x 3 Slotted Indented Hex Washer Thread Cutting Screw Type 1 Fully Threaded Zinc 10-32-.225 They have a 1/4" hex

They have a 1/4" hex head with a slotted drive and are designed for use in metal applications

With its hex shape

The stud is manufactured to meet the requirements of ASTM A193 and ASME B16

and electrical work

3/8-16 x 3 Slotted Indented Hex Washer Thread Cutting Screw Type 1 Fully Threaded Zinc 10-32-.225 They have a 1/4" hex3 8 16 x 3 Slotted Indented Hex Washer Thread Cutting Screw Type 1 Fully Threaded Zinc is a screw with a 3 8 inch diameter and a 16 threads per inch pitch. It is 3 inches long and has a slotted indented hex washer head. The screw is made of steel and has a zinc coating for corrosion resistance. It is a type 1 screw, which means it has a coarse thread. The screw is fully threaded, which means that the threads extend the entire length of the screw.