Simpson Strong-Tie's #10 x 2-1/2 in. Square-Drive Bugle-Head Self-Drill Stainless-Steel Screws (2,000 Pack) are commonly specified for framing connectors, metal-to-wood attachments, and general construction fastening. The square-drive recess provides improved torque transfer and reduced cam-out, supporting faster, more controlled installation. Designed for compatibility with a wide range of building materials, these screws deliver dependable holding strength and long-term durability in demanding jobsite conditions.