These carbon steel self-drilling screws with an electro-zinc plating finish are designed for medium-duty steel-to-steel fastening applications without the need to pre-drill. They have a 1/4"-14 thread size and a one-inch length. These screws feature a 3/8-inch hex washer head and a Teks 3 drill point. They have a drilling and tapping capacity range from 0.036 to 0.210 inches and a maximum material attachment of 0.400 inches. There are 100 self-drilling screws per pack.
Technical Specs
ItemSelf-Drilling Screw
MaterialCarbon Steel
Screw Size1/4 in
Maximum Drilling Thickness0.210 in
ApplicationAccessories to Steel Framing, Clip to Steel Framing, Duct Work to Steel Framing