#8 x 2-1/4" Simpson Strong-Tie #2 Square Wafer Head Steel Fiber-Cement Screw - 316 Stainless, Pkg. 2,000Simpson Strong Tie Fiber Cement Screws make it easy to install fiber cement siding on your home projects. Designed with a wafer head and small cutting nibs that sink in flush without extra effort, leaving you with a smooth, clean look. Whether youre fastening siding to panels or directly to wood, these screws help you get the job done right. Each screw starts quickly thanks to a sharp Type 17 point, no pre drilling in most cases. The coarse threads