Self-Piercing Screws

To be used in thin metal (less than 0.050" thick). Eliminates need for pre-drilled holes. Undercut area beneath the head allows greater length of thread engagement. Twin lead threads reduce driving torque. Also called "Speed Point" or "Zip Screws". White Painted Slotted Hex Washer Head Available. If interested in other color painted heads, please contact us for assistance. Great for gutters & siding.