Overview Reviews Product Description SPEE-DRILL® screws are driven with a standard electric drill and 1/4 hex socket bit. The special hardened conical point bores through sheet metal and the serrated washer face prevents thread stripping. Papco Screws Catalog Product Videos Custom Field Box quantity 1000 Plating Zinc Diameter #8 Length 1/2" Bit type Robertson Product Reviews Write a Review Write a Review × Paulin #8 x 1/2" Spee-Drill® Pan Head Steel Tapping Screw 1000 Pc. 536-277 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *