| Drive Size | : | 1/4 in |
| Drive Type | : | Slotted |
| Finish | : | Zinc-Plated |
| Head Type | : | Hex Washer |
| Overall Length | : | 3 in |
| Point Type | : | Self-Piercing |
| Thread Length | : | 1-1/2 in |
| Thread Size | : | #10 |
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.
Malco® Self-Piercing Screw, #10 Thread, 3 in Overall Length, Hex Washer Head, 1/4 in Drive, Slotted Drive, Self-Piercing Point, 1-1/2 in Thread Length, Finish: Zinc-Plated
- Full 1/4 in (no. 8) head will not strip out of hex driver opening
- Burr-free
- Patented head markings indicate one and only genuine Zip-ins. U.S. patent no. D524638
- Sharp tapered point will not mushroom or break
- No walking