Simpson #12 x 4" Self-Drilling Hex-Washer Head Screw, 316 Stainless Steel Pneumatic Nails Hot-Dip Galvanized (HDG) Finish -

Hot-Dip Galvanized (HDG) Finish - Offers extra corrosion resistance for exterior and treated-wood applications

Tooth Style Various

6-lobe screws sized #7 x 2-1/4 in

For a detailed cross-reference of which decking colors and brands correspond to each DCU screw color

Constructed from Type 304 Stainless Steel

Simpson #12 x 4" Self-Drilling Hex-Washer Head Screw, 316 Stainless Steel Pneumatic Nails Hot-Dip Galvanized (HDG) Finish -Simpson #12 x 4" Self Drilling Hex Washer Head Screw in 316 Stainless Steel is a heavy duty fastener engineered for reliable performance in corrosive and demanding environments. Built from Type 316 stainless steel the grade recognized for superior resistance to saltwater, moisture, and harsh outdoor conditions this screw is purpose designed for securing aluminum and fiberglass assemblies where a standard fastener would quickly fail. The #3 drill point