DeWALT® Screw-Bolt+™ screw anchor, heavy duty, 1/2 in dia, 5 in OAL, 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, 10,705 lb shear strength, 4,400 lb tensile strength. DeWALT® PFM1411460 Screw-Bolt+™ Heavy Duty Screw Anchor, 1/2 in dia, 5 in OAL, Hex Washer Head Drive, Carbon Steel