SDS Structural Connector Screw, 1/4"x1-1/2" DB Coating, 3/8"Hex/.48"Washer, 25/bx T-17

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.