1/4" x 1-1/2" Strong-Tie SDS25112 Heavy-Duty Connector Screw - Double-Barrier Coating, Pkg 1500The Simpson Strong Tie Strong Drive SDS Heavy Duty Connector Screw is a 1 4" diameter structural wood screw designed for a wide range of connector, wood to wood, and engineered wood applications. Built for strength and speed, the SDS installs without predrilling thanks to its easy driving Type 17 point, which reduces splitting while ensuring consistent performance. Tested and approved in multiple structural applications, the SDS screw features a