HW8X1/2ZT #8x1/2 Zip-in Screws with Hex Washer Slotted Head 1 000-Pack

Product Description A unique thread design and quality controlled manufacture spell the Zip-In difference. Zip-In s sophisticated heat treat process allows the screw to taper to a fine sharp point without sacrificing critical point strength. A single starting thread is formed down to the very tip of the point and is the source of Zip-In s penetrating power. A second thread above the point engages after initial penetration and drills in the screw double fast. Zip-In screws are faster driving with a greater capacity for fastening heavier gauges of sheet metal than any other self-piercing type. From the Manufacturer A unique thread design and quality controlled manufacture spell the Zip-In difference. Zip-In s sophisticated heat treat process allows the screw to taper to a fine sharp point without sacrificing critical point strength. A single starting thread is formed down to the very tip of the point and is the source of Zip-In s penetrating power. A second thread above the point engages after initial penetration and drills in the screw double fast. Zip-In screws are faster driving with a greater capacity for fastening heavier gauges of sheet metal than any other self-piercing type.