Simpson #7 2-1/4 in Self-Drilling Siding Screw 410 Stainless 100-Pack Countersink Bits View Spec Sheet

View Spec Sheet

Installations where a low-profile fastener is preferred over standard through bolts

maximizing tool longevity

Slot Mortising

Simpson #7 2-1/4 in Self-Drilling Siding Screw 410 Stainless 100-Pack Countersink Bits View Spec SheetThe Simpson #7 2 1 4" Self Drilling Siding Screw in Type 410 Stainless Steel is engineered for reliable fastening of wood siding, wood panels, and metal trim to steel studs. Featuring a trim head profile, a #3 drill point for self starting penetration through metal, and a #1 square drive for secure bit engagement, this screw delivers consistent, professional grade performance in demanding construction applications. Supplied in a convenient 100 piece