CRL #2 Phillips Flat Head x 3-1/4" Masonry Screws
C.R. LAURENCE 3177407 CRL 3/16" x 3-1/4" #2 Phillips Flat Head Masonry Screws (100 Pack). 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..