Malco . HW7X1-2ZT

The Malco HW7X1/2ZT Zip-in Self Piercing Screw features a unique thread design and quality controlled manufacture. A sophisticated heat treat process allows the screw to taper to a fine, sharp point without sacrificing point strength. This results in faster driving and a greater capacity for fastening heavier gauges of sheet metal. The ultra sharp tapered point will not mushroom, break, or walk, and the undercut-indented hex washer slotted head always seats flush.