Simpson #7 2-1/4 in Self-Drilling Siding Screw 410 Stainless 1000-Pack F07T225TDM Deck-Drive DHPD Hardwood Deck Screw Why use SDS screws instead

Why use SDS screws instead of standard through bolts for this column cap

Is the APDJT1

#3 undersized square drive (2 driver bits in each box

standoff helps prevent rot at the end of the post by keeping the wood elevated away from the concrete surface

Trusted by specifiers and contractors for performance in demanding structural applications

Simpson #7 2-1/4 in Self-Drilling Siding Screw 410 Stainless 1000-Pack F07T225TDM Deck-Drive DHPD Hardwood Deck Screw Why use SDS screws insteadThe 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 clean self drilling performance, and a #1 square drive for positive bit engagement, this screw delivers consistent installation results in light gauge steel framing applications. Sold in a convenient 1,000 piece pack under model