0.315" x 6-1/4" Strong-Drive SDHR Combo-Head Screw - Zinc, Pkg 100 RCA Rigid Connector Angles This series includes optional stitch

This series includes optional stitch screws if your project requires them

Suitable for use with steel up to the recommended thickness range

It can also support select deck framing and ledger connection applications where reliable structural anchorage is critical

An extra-sharp point speed starts during assembly

Painted head options - 13 colors available to match leading PVC and composite decking brands

0.315" x 6-1/4" Strong-Drive SDHR Combo-Head Screw - Zinc, Pkg 100 RCA Rigid Connector Angles This series includes optional stitchThe 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.