Combination Lead Double Thread: Starting thread machined down to the very tip of the screw point to instantly penetrate and engage in heavy gauge or light gauge layered sheet metal.
Sharp Tapered Point: Quality controlled heat treat process for strong screws that won't mushroom, break or walk and provide complete operator control.
Look for the Dots! The distinctive two-dot mark on top guarantees authenticity and the trusted quality of Malco's patented Zip-in lineup.