Simpson #7 2-1/4 in Self-Drilling Siding Screw 410 Stainless 4000 Pk F07T225TDB Rigid Connectors this system adds stiffness to

this system adds stiffness to hold boards securely in place while maintaining flexibility to accommodate seasonal contraction and expansion

Number of Teeth 10+10 (two adjustable halves)

saving installation time and reducing labor effort

Ball-End Grooves

Hole Cutting in Plasterboard

Simpson #7 2-1/4 in Self-Drilling Siding Screw 410 Stainless 4000 Pk F07T225TDB Rigid Connectors this system adds stiffness toThe 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