CRL #3 Phillips Flat Head x 2-1/4" Masonry Screws

CRL Masonry Screws actually cut into masonry while installing using specially sharp cut threads. They hold strong in concrete, brick or block eliminating the need for expansion anchors, plugs with screws, or power actuated fasteners.
Common applications include: Electrical conduit and J-boxes; wall partition brackets; roof flashing; awning brackets; ceiling tie wire brackets; control panels; 1 x 2 wood furring; 3/4" (19 mm) plywood backer boards; sill plates; 2 x 4 wood nailers. Available in either 3/16" or 1/4" (5 or 6 mm) diameters and slotted hex washer or Phillips flat head styles.

Complete Anchoring System for Concrete Block and Brick | Each Box Complete with Masonry Drill Bit | Available in Slotted Hex Washer or Phillips Flat Head Styles