Malco Zip-In Sheet Metal Screw, Self-Piercing, Measurement System: Imperial, #6 Thread, Hex Washer Head, Slotted Drive, Zinc Plated, 1/4 in Head, Double Thread, 3/8 in Thread Length
- Undercut - indented hex washer slotted head
- Bright zinc plated
- Burr free
- Full 1/4 in (No 8) head will not strip out of hex driver opening
- One 1/4 in hex driver accommodates all sizes
- Undercut - always seats flush
- Some screws sizes available in pails
- Trademarked and patented head markings indicate one and only genuine zip-ins
- 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
Standards/Approvals: US Patent No. D524/638
Warranty: Limited Lifetime
Warranty: Limited Lifetime
.png)
.png)
