#9 x 2-1/2" Strong-Tie SD9212SSMB Connector Screw - 316 Stainless Steel, Pkg 2000 ITS I-Joist & SCL Hangers With prepunched slots and round

With prepunched slots and round holes

reducing movement under load

this self-piercing screw features a large pancake-style head for maximum bearing surface

Pre-drilled holes simplify installation with anchoring hardware (sold separately)

#9 x 2-1/2" Strong-Tie SD9212SSMB Connector Screw - 316 Stainless Steel, Pkg 2000 ITS I-Joist & SCL Hangers With prepunched slots and roundThe Simpson Strong Tie Strong Drive SD Connector SS Screw is the only screw approved as a replacement for nails in select Simpson Strong Tie stainless steel connectors. Built from Type 316 stainless steel, these screws deliver exceptional corrosion resistance, making them ideal for coastal, industrial, and other severe exposure environments. Engineered for load rated performance, SD SS screws provide greater single fastener strength than standard