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Flute Length: 1-5/8 inches - Optimized for effective chip removal and improved finish
the Heli-Tie ensures long-term reliability and resilience against the elements
Depth of Cut: 1" – Allows for deeper drilling without compromising performance
Robust Construction: Made from high-quality brazed carbide for extended tool life
Malco 8X1 White Zip-In Self-Piercing Screws | 1/4" Slotted Hex Washer Head Sheet Metal Screws | Fast & Easy Piercing | Zinc Plated (7000 Count) Diameter:#8 Flute Length: 1-5/8 inches -Malco HW8X1ZW White Zip In Self Piercing Screws are purpose built for fast, clean securing of registers to walls and finishing ductwork with confidence. In a bulk 7000 count pack, theyre ready for large projects, contractor jobs, or ongoing maintenance without constant repurchases. What makes these screws stand out Zip in self piercing design: no pre drilling required, so installers can lock registers into place quickly and accurately, reducing