0.315" x 4" Strong-Drive SDHR Combo-Head Screw - Zinc, Pkg 25 Cross-Laminated Timber Screws 45-Degree Right Skew: Precision-engineered for

45-Degree Right Skew: Precision-engineered for secure

and a clean finish

and gypsum panels to wood or steel

forming work and cold-formed steel

while the larger-diameter upper shank provides more shear resistance and successful installation

0.315" x 4" Strong-Drive SDHR Combo-Head Screw - Zinc, Pkg 25 Cross-Laminated Timber Screws 45-Degree Right Skew: Precision-engineered 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.