Model # HW8X3/4ZTS
Malco Zip-in number 8 x 3/4 in. zinc-plated steel hex-head slotted self-piercing sheet metal screws (1,000-pack) feature a zip-in thread design. These screws have a single starting thread and a second thread above the point that engages after initial penetration and help drill the screws in fast. These self-piercing screws are able to fasten heavy gauges of sheet metal.
