Malco® Zip-In® HW7X1/2ZT Self-Piercing Sheet Metal Screw, #7, Hex Washer Head, Slotted Drive, Zinc Plated
Part #: MALHW7X1/2ZT
MFG #: HW7X1/2ZT
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.
Brand : Malco®
Country of Origin : JP
Diameter - Thread Size : #7
Drive Type : Slotted
Head Size : 1/4 in
Head Type : Hex Washer
Features
- 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
- https://youtu.be/s-iC8Zp8zKg
Standards/Approvals/Certifications
- US Patent No. D524/638
Warranty
- Limited Lifetime