A unique thread design and quality controlled manufacture spell the Zip-In® difference. Zip-In's® sophisticated heat treat process 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-In's® penetrating power. A second thread above the point engages after initial penetration and drills in the screw double fast. Zip-In® screws are faster driving, with a greater capacity for fastening heavier gauges of sheet metal than any other self-piercing type.
California residents: see Proposition 65 Warning
Weight 33.92 Pounds (Lb) Width 10 Inches (In) Height 6.5 Inches (In) Country of Origin JPN Length 10 Inches (In) Brand Malco Head Type Flathead Application HVAC Color Yellow Composition Zinc Plated Finish Heat Treat Overall Length 10" Package Quantity 12000 SAE or Metric SAE Size 1/4" Warranty Offered Yes Screw Length 1/2" Screw Size #8