Green ribbed plastic anchors with #14 x 1.5" phillips sheet metal screw. Base material: Brick, concrete, drywall, hollow block, plaster. 12-14-16 x 1.5" Drill size: 5/16" Min. Embedment: 1.5" Green ribbed plastic anchors with #14 x 1.5" phillips sheet metal screw. Base material: Brick, concrete, drywall, hollow block,