The 1/4-14 x 7/8″ Lap Self-Driller ZAC screw with a 3/8″ hex washer head is designed for fastening overlapping metal panels quickly and securely. Its self-drilling point eliminates the need for pre-drilling, allowing the screw to cut through metal and create a strong hold in one efficient step. The 1/4-14 thread design provides excellent clamping force for tight lap connections, while the 3/8″ one-piece hex washer head ensures a solid drive and even load distribution for a secure seal. Finished with a ZAC coating for corrosion resistance, this fastener is ideal for metal roofing, siding, and panel lap applications where durability and reliability are essential.
Sold in 100-count packs.




