Zinc plated steel No. 8 x 1/2 in. wafer head Phillips metal piercing K Lath screw in Invincibox™. Bit size No. 2. Package of 100.
Dottie K-Lath metal-piercing screws will tap up to 20 ga. steel studs. Phillips wafer head provides large bearing surface. Length is determined from the base of the fastener. Used for framing, electrical, plumbing and sheet metal applications.