CRL #12 x 1" Hex Washer Head Self-Drilling Sheet Metal Screws

• Cut Their Own Holes in a Variety of Metals
• Speed Manufacturing and Fabricating
• Order in Bulk for Additional Savings

CRL Self-Drilling Screws (SKU: 12X1HHDTEK) combine a drill tip and screw into one efficient fastener to save time and labor. Designed to drill their own hole, form or cut mating threads, and complete a fastening in a single operation, these precision-machined, heat-treated screws deliver reliable performance for metal-to-metal and mixed-material assemblies.

Ideal for self-drilling screw applications such as metal roofing, siding, curtain wall and storefront framing, metal window and door installation, HVAC ducts, electrical box and conduit fastening, decking and subfloors, emergency board-ups, and general sheet-metal fabrication. Works well in carbon steel, aluminum, brass, bronze, stainless steel, fiberglass, and some thin plastics. The self-drilling design eliminates pilot holes and hole-alignment issues, often reducing the number of fasteners required and speeding on-site assembly.

Sold in resealable tubs of 100 and bulk poly bags of 1,000 — economical options for contractors and fabricators. Key differentiators: integrated drill-and-screw design, precision heat treatment for strength, and compatibility with a wide range of metals for fast, accurate installs.