These Simpson Strong-Tie Strong-Drive® SD connectors screws are constructed to replace nails in tight spaces where using a hammer is difficult and more control is desired. The steel structural screws have a galvanized coating that makes them ideal for interior and exterior use. They exceed typical single-fastener load values, and have a hex head with washer that prevents cam-out and head stripping. With their sharp point and serrated thread, the structural screws deliver fast starts and reduce torque for easy installation. Size #10 x 2.5-in