DeWALT® Screw-Bolt+™ Screw Anchor, Heavy Duty, 1/2 in Diameter, 5 in Overall Length, Hex Washer Head Drive, Carbon Steel, 1-3/4 in Minimum Embedment Depth, Zinc Plated, Applicable Materials: Normal Weight Concrete, Lightweight Concrete, Concrete Over Steel Deck, Grouted Concrete Masonry and Brick Masonry, 31/64 in H Head, 3-1/4 in Maximum Work Thickness, 10705 lb Shear Strength, 4400 lb Tensile Strength