Simpson 1/4" x 1-1/2" Heavy-Duty Connector Screw Double Barrier Coating Black PACK:250 Pk How does the carriage move

How does the carriage move so smoothly along the frame

Select models are available in hot-dip galvanized finish as a custom order

Gross Weight: 147 lbs

tool-friendly setup

Simpson 1/4" x 1-1/2" Heavy-Duty Connector Screw Double Barrier Coating Black PACK:250 Pk How does the carriage moveSimpson SDS25112DBBR25 Outdoor Accents Heavy Duty Connector Screw 1 4 in. x 1 1 2 in. DB Coating, Black is a high strength structural wood screw from Simpson Strong Tie, engineered for connector installations as well as wood to wood and engineered wood applications. Featuring a Type 17 point for easy, no predrill installation and a black double barrier coating for corrosion resistance, this screw delivers both structural performance and a polished