Simpson Strong-Tie 0.59" x 6-1/4" SDHR Metal-To-Wood Combo-Head Screw - Black E-Coat, Qty. 25 Single Bubble Insulation and as a pick-proof sealant

and as a pick-proof sealant

it stands up to harsh environments including saltwater exposure

Made from 18-8 stainless steel

Whether you're outfitting a fleet

This 40" version is ideal when deeper anchoring is required—especially in loose soil or for high-wind conditions

Simpson Strong-Tie 0.59" x 6-1/4" SDHR Metal-To-Wood Combo-Head Screw - Black E-Coat, Qty. 25 Single Bubble Insulation and as a pick-proof sealantThe Simpson Strong Tie SDHR Combo Head screw is built for speed, strength, and versatility in fastening cold formed steel (CFS) to wood. Designed for indoor applications, this self drilling screw features a #3 drill point that quickly penetrates steel up to 16 gauge thick, making it a reliable choice for contractors working in light framing, mechanical fastening, or general construction jobs. Its combo head design allows installation with either a