1/4-14 x 1 Hex Washer Head TEKS® Self Drilling Screw (T3) Climaseal® . Ideal for attaching clips, duct straps, brick ties or accessories to steel framing Ideal for attaching wall panels to girt and medium gauge steel to steel framing Sharp convex drill point has precise cutting edges to improve drill performance with less effort Non-walking point provides fast material engagement Climaseal® finish provides excellent corrosion resistance and lowers tapping torque