- Monroe, New York, United States
- US $23.99
- Jan 29th
These screws are used to screw light guage steel, galvanized or aluminum roofing panels (24ga - 18ga) to a structural purlin. They are made from case hardened heat-treated steel and have a zinc coating. They are a #12 screw, 1" long, cupped head, have a self sealing washer, have a self drilling point and use a 5/16" standard screw bit.