Simpson Strong-Tie SD9212R100#9x2.5 Conn Screw Ideal for use in tight spaces where using a hammer is difficult and more control is desired Single-fastener steel-side-plate load capacity of the SD9 exceeds that of the 10D common nail 9 x 2-1/2-inch structural screw Optimized heat-treating for ductility and strength Quantity: 100-pieces