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The MALCO HW8X1/2ZG Zip In Screws are self-piercing sheet metal screws ideal for HVAC metal duct fastening. These screws feature a unique thread design and quality-controlled manufacture. They are made with a heat treat process that allows the screw to taper to a fine, sharp point without sacrificing point strength. Designed for faster driving and greater capacity for fastening heavier gauges of sheet metal.
These zinc-plated screws are designed for HVAC applications and provide superior quality and performance.
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