MALCO HW8X2ZT Zip-in Self Piercing Sheet Metal Screws 250 Pack

MALCO HW8X2ZT Zip-in Self Piercing Sheet Metal Screws 250 Pack

• Undercut-indented hex washer slotted head
• Bright Zinc Plated
• Burr Free
• Trademarked & Patented Head Markings indicate one and only genuine Zip-ins. U.S. Patent No. D524,638
• Trademarked & Patented Head Markings indicate one and only genuine Zip-ins. U.S. Patent No. D524,638

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.