Hammer Drive Pin Anchor Anchor Diameter 1/2 in Overall Length 2 3/4 in Thread Size 1/2 In.-13 Thread Length 15/16 in Anchor Material Steel Pin Material Steel Finish Zinc Yellow Head Type Flat Head Diameter Not Applicable Head Height Not Applicable Nut Width Not Applicable Washer Outside Diameter Not Applicable Drill Bit Size 3/4 in Minimum Installation Depth 2 in Maximum Material Thickness 1/4 in Ultimate Shear Strength (4 000 psi Concrete) Not Applicable