1/4" x 3-1/2" Strong-Tie SDS25312MB Heavy-Duty Connector Screw - Double-Barrier Coating, Pkg 125 Concrete Repair & Crack Injection finished look with no visible

finished look with no visible flanges

secure fastening into concrete or masonry

Insert threaded rod

Commercial and multi-family construction

Designed to provide strong lateral and uplift resistance

1/4" x 3-1/2" Strong-Tie SDS25312MB Heavy-Duty Connector Screw - Double-Barrier Coating, Pkg 125 Concrete Repair & Crack Injection finished look with no visibleThe 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