0.275" x 6-1/4" Strong-Drive SDHR Combo-Head Screw - Zinc, Pkg 100 Metal To Wood Roofing Screws Its left-skewed design allows for

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

including pergolas

while the large diameter profile increases load capacity over standard anchors

The Simpson Strong-Tie CMSTC16 strap provides nail slots for easy installation and can be cut to length on the job site for maximum versatility

Self-Drilling Point: Enables quick and easy installation without pre-drilling

0.275" x 6-1/4" Strong-Drive SDHR Combo-Head Screw - Zinc, Pkg 100 Metal To Wood Roofing Screws Its left-skewed design allows forThe 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.