Simpson Strong-Tie SDS25312MB Strong-Drive® SDS HEAVY-DUTY CONNECTOR Screw — 1/4 in. x 3-1/2 in. DB Coating (125-Qty)

The Simpson Strong-Tie Strong-Drive SDS Heavy-Duty Connector screw is a 1/4 in.-diameter high-strength structural screw ideal for various connector installations as well as wood-to-wood and engineered wood applications. It installs with no predrilling and has been extensively tested in various applications. The SDS is improved with an easy-driving Type-17 point and a corrosion-resistant double-barrier coating.