The Malco Hw10X1Z is a 1" Zip In Screws Zinc. This set of Zip-In zinc sccrews have a unique thread design and quality controlled manufacturing process, including a sophisticated heat treat process that allows the screw to taper to a fine, sharp point without sacrificing critical point strength. It features 2 threads to help you drive the screws faster with a greater capacity for fastening heavier gauges of sheet metal than any other self-piercing type of screw.
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