Simpson Washer Head Structual Wood Screw - 5.6mm x 90mm Dark It has rectangular profile and

It has rectangular profile and is available is several sizes

branding and compliance stamps

making it the perfect choice for facing joists and posi-struts on beams and girders

5 Outlets with Wide Spacing

Application: For fixing treated pine decking

Simpson Washer Head Structual Wood Screw - 5.6mm x 90mm Dark It has rectangular profile andThe Strong Drive SDWS Structural Screws are designed for quick, strong, and easy installation. Their SawTooth Point removes the need for pre drilling and lowers torque by 30%. These screws install 10% stronger than traditional options and come with a T 40 bit. Ideal for decking, framing, and outdoor projects, they are certified for structural use.