Simpson Strong-Tie 0.669" x 4" SDHR Metal-To-Wood Combo-Head Screw - Black E-Coat, Qty. 100 Over 80000 lbs. Hex washer head provides stability

Hex washer head provides stability and clean seating during installation

Always wear appropriate PPE and follow safety protocols when using powder-actuated equipment

or commercial framing

light-duty framing

This product is intended for use with 6x posts or columns and 3-1/4x beams but is also available in a wide range of other sizes and both nominal and rough-cut lumber

Simpson Strong-Tie 0.669" x 4" SDHR Metal-To-Wood Combo-Head Screw - Black E-Coat, Qty. 100 Over 80000 lbs. Hex washer head provides stabilityThe 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