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Malco 3/4″ Zip Screw 1000Pack

* 1000 pack of 3/4″ Zip Screws
* Undercut-indented hex washer slotted head
* Bright Zinc Plated
* Burr Free
* Full 1/4″ (no. 8) head will not strip out of hex driver opening
* One 1/4″ hex driver accommodates all sizes
* Undercut always seats flush
* Single starting thread machined down to very tip of screw point
* Instantly penetrates and engages in heavy gauge sheet metal and layered light gauge
* Quality controlled heat treat
* Sharp tapered point will not mushroom or break
* No walking

SKU: tmzs34 Category:


Malco’s Zip-In Screws are known for their superior quality and is considered by many for being the best screw choice for HVAC metal duct fastening. A unique thread design and quality controlled manufacture spell the Zip-In sheet metal screw difference. Zip-Ins are made with a sophisticated heat treat process which 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-Ins penetrating power. A second thread above the point engages after initial penetration and drills in the screw double fast. Malco’s Zip-In screws are faster driving, with a greater capacity for fastening heavier gauges of sheet metal than any other self-piercing type.