The Hillman .138 in. D X 3/4 in. L Plastic Pan Head Conical Anchor 201 Piece Kit is perfect for a variety of anchoring applications. The conical design provides maximum holding power in both concrete and mortar. The anchor is also easy to install, with no pre-drilling required. The included screws are made of high-quality steel for added durability. The kit includes 201 anchors and screws, making it perfect for large projects.