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- 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 gas of sheet metal than any other self-piercing type.
Malco® Zip-In® Sheet Metal Screw, Self-Piercing, #10, 3 in Overall Length, Hex Washer, Slotted Drive, Zinc Plated, Sharp Tapered Point, 1/4 in Head, Double, 3/4 in Thread Length
- Undercut - indented hex washer slotted head
- Bright zinc plated
- Burr free
- One 1/4 in hex driver accommodates all sizes
- Undercut - always seats flush
- Trademarked and patented head markings indicate one and only genuine Zip-In®
- Combination lead double thread design
- Single starting thread machined down to very tip of screw point
- Instantly penetrates and engages in heavy gauge sheet metal and layered light gauge
- Consistent hard point
- Quality controlled heat treat
- Sharp tapered point will not mushroom or break
- No walking
- Diameter - Thread Size#10Drive TypeSlottedFinishZinc PlatedOverall Length3 inPoint TypeSharp TaperedHead Size1/4Head TypeHex WasherManufacturerMalco ProductsManufacturer #HW10X3/4ZXThread Length3/4Thread TypeDoubleTypeSelf-Piercing