0.275" x 6-1/4" Strong-Drive SDHR Combo-Head Screw - Zinc, Pkg 100 Metal To Wood Roofing Screws Attaching plywood

Attaching plywood

Its left-skewed design allows for seamless joist alignment in complex framing layouts

The Simpson ECCQ44-SDS2

enhancing visual appeal without compromising structural integrity

while the large diameter profile increases load capacity over standard anchors

0.275" x 6-1/4" Strong-Drive SDHR Combo-Head Screw - Zinc, Pkg 100 Metal To Wood Roofing Screws Attaching plywoodThe Simpson Strong Tie Strong Drive SDHR Combo Head Screw is made for serious wood projects like cross laminated timber (CLT), mass timber, and other big framing jobs. The unique combo head design gives you flexibility, with a choice to drive it with either a hex bit or a T40 6 lobe bit. A knurled shank helps lock the screw in place, and the sharp Type 17 point starts fast, reduces driving torque, and often eliminates the need for predrilling.