| Additional Information | : | Bulk Packaging |
| Drive Size | : | 1/4 in |
| Drive Type | : | Hex, Slotted |
| Finish | : | Zinc-Plated |
| Head Size | : | 1/4 in |
| Head Type | : | Slotted Hex Washer |
| Material | : | Sheet Metal |
| Overall Length | : | 1-1/2 in |
| Thread Size | : | #8 |
| Thread Type | : | Double Lead |
Malco® Zip-in® screws are known for their superior quality and is considered by many for being the best screw choice for HVAC metal duct fastening. A unique thread design and quality controlled manufacture spell the Zip-in® sheet metal screw difference. Zip-in® are made with a sophisticated heat treat process which 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® penetrating power. A second thread above the point engages after initial penetration and drills in the screw double fast. Malco® Zip-in® screws are faster driving, with a greater capacity for fastening heavier gauges of sheet metal than any other self-piercing type. For the best performance, use any Zip-in® sheet metal screw with a Malco® C-RHEX™ cleanable, reversible dual-sided hex driver.
Malco® Self-Piercing Screw, #8 Thread, Double Lead Thread, 1-1/2 in OAL, 1/4 in Head, Slotted Hex Washer Head, 1/4 in Drive, Hex, Slotted Drive, Sheet Metal, Zinc-Plated, Bulk Packaging
- Undercut indented hex washer slotted head
- Bright zinc plated, burr-free
- Full 1/4 in head will not strip out of hex driver opening
- One 1/4 in hex driver accommodates all sizes
- Undercut - always seats flush
- 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