Masonry Screw w/ Drill Bit 1/4 in Dia. Heat Treated Head Style Flat Phillips Low Carbon Steel Zinc Yellow Anchor Dia 1/4 In. Length 1 In. Drill Bit Size 11/64 In. Min Embedment 3/4 In. Replace Plastic Anchors and Sheet Metal Screws for Lightweight Anchoring in Concrete Block Brick Wood Vinyl and Light Steel. Package Quantity 100