Ideal for concrete, masonry, and steel applications, DeWALT Engineered by Powers SCREW-BOLT+™ High Performance Screw Anchors are a reliable and efficient anchoring solution. These zinc-plated screws are capable of holding up to 38 lbs. per anchor in concrete and up to 50 lb. per anchor in masonry. Get a pack of 50 and complete your project with confidence.