0.315" x 6-1/4" Strong-Drive SDHR Combo-Head Screw - Zinc, Pkg 100 RCA Rigid Connector Angles Painted head options - 13

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

Suitable for use with steel up to the recommended thickness range

improving ease of use and efficiency

Guardrail post anchoring

Metal Roofing and Siding: Ideal for homes

0.315" x 6-1/4" Strong-Drive SDHR Combo-Head Screw - Zinc, Pkg 100 RCA Rigid Connector Angles Painted head options - 13The 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.