25 Count, Borefast White Phillips Pan Head Screw Anchors. 1-1/2" The Borefast Anchor & Screw in One is the best one-piece anchor for fastening into drywall and masonry materials. Borefast anchors self-drill through drywall and easily penetrate both 20 gauge wood and metal studs. They also fasten into concrete, brick, block, and plaster when a 3/16" hole is pre-drilled. Borefast anchors meet or exceed drywall load values versus most competing drywall anchors.