
Product Overview
Hex Head Hi-Lo Self-Drilling Screws combine high-torque driving with specialized dual-thread for attaching roofing, cladding, and metal to wood or steel subframes without pre-drilling. Superior Pull-Out Strength: Dual Hi-Lo threads (one high sharp thread, one low thread) bite deep into materials like wood, plastics, or thin gauge steel to deliver maximum hold and prevent loosening. Fast, Effortless Drilling: The self-drilling point eliminates pilot holes, while the alternating thread heights lower drive torque and prevent splitting.