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The HILTI 406474 Hex Washer Head Self-Drilling Zip Screw is designed for HVAC duct fabrication and installation. This screw combines the benefits of sharp point and self-drilling screws, making it suitable for heavier gauge steel. It can efficiently fasten sheet steel from twenty to twenty-eight gauge.
These HVAC zip screws are ideal for use in restricted spaces where traditional screws may pose challenges. Their design minimizes metal filings, promoting a cleaner work environment.
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