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.
Undercut-indented hex washer slotted head
Bright Zinc Plated
Full 1/4" (no 8) head will not strip out of hex driver opening
This product is listed under the following manufacturer number(s):
Malco HW7X1/2ZRBT Pack of 1,000
Malco HW7X1/2ZRBG Pack of 100
*Denotes a finish or option that has been discontinued
Malco HW7X1/2ZRB Product Specifications
7 x 1/2
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