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® Zip-In® Sheet Metal Screw, Self-Piercing, Measurement System: Imperial, #7, Hex Washer Head, Slotted Drive, Zinc Plated, 1/4 in Head, Double, 1/2 in Thread Length
Diameter - Thread Size | : | #7 |
Drive Type | : | Slotted |
Finish | : | Zinc Plated |
Head Size | : | 1/4 in |
Head Style | : | Hex Washer |
Measurement System | : | Imperial |
Thread Length | : | 1/2 in |
Thread Type | : | Double |
Type | : | Self-Piercing |
Warranty | : | Limited Lifetime |