Zinc plated steel No. 8 x 3/4 in. self drilling wafer head Phillips screws in Invincibox™. Bit size No. 2. Tuff Pack of 500.
Dottie hex washer head self-drilling screws drill a hole and tap threads in one operation. The drilling operation removes metal and can be used in heavier gauge metals. Length is determined from the base of the fastener head.