Simpson #7 2-1/4 in Self-Drilling Siding Screw 410 Stainless 100-Pack Countersink Bits Simpson #8 x 1-1/4" Hi-Lo

Simpson #8 x 1-1/4" Hi-Lo T25 Cement Board Screw CBHL114R200 is a professional-grade fastener from Simpson designed specifically for securing cement backerboard in tile and wet-area installations

Slot Mortising

View Spec Sheet

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

Simpson #7 2-1/4 in Self-Drilling Siding Screw 410 Stainless 100-Pack Countersink Bits Simpson #8 x 1-1/4" Hi-LoThe 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