Simpson #7 2-1/4 in Self-Drilling Siding Screw 410 Stainless 4000 Pk F07T225TDB Rigid Connectors What is the drive mechanism

What is the drive mechanism ratio

Ball-End Grooves

offering flexible installation options for a variety of structural configurations

saving significant time on installation

Number of Teeth 10+10 (two adjustable halves)

Simpson #7 2-1/4 in Self-Drilling Siding Screw 410 Stainless 4000 Pk F07T225TDB Rigid Connectors What is the drive mechanismThe Simpson F07T225TDB is a #7 x 2 1 4" self drilling siding screw engineered for reliable fastening of wood siding, wood panels, and metal trim to steel studs. Constructed from Type 410 stainless steel, this screw can be hardened through heat treatment, giving it the ability to drill through metal substrates. Featuring a low profile trim head, a #3 drill point, and a #1 square drive, it delivers consistent performance in demanding siding