Simpson #12 x 2" Self-Drilling Flat-Head Screw with Wing, 410 Stainless Steel Collated Interior Wood Screws Diablo made TiCo high-density carbide

Diablo made TiCo high-density carbide for maximum performance and up to 5X longer cutting life

Top-supported structural post-to-beam installations requiring positive mechanical connection

Dimensions: 25-1/2 in

What beam and post sizes is the CCQ7

Simpson #12 x 2" Self-Drilling Flat-Head Screw with Wing, 410 Stainless Steel Collated Interior Wood Screws Diablo made TiCo high-density carbideSimpson #12 x 2" Self Drilling Flat Head Screw with Wing is a precision engineered fastener from Simpson designed for securely attaching wood, plywood, and fiber cement to steel substrates up to 0. 209" thick. The winged drill point bores a clean clearance hole through the wood layer so the material does not climb the shank during installation then the wings snap off cleanly as the point contacts the steel, delivering a flush, professional finish.