Hammer Drive Pin Anchor Anchor Diameter 1/4 in Overall Length 1 3/4 in Thread Length 5/8 in Anchor Material Steel Pin Material Steel Finish Zinc Plated Head Type Round Drill Bit Size 1/4 in Minimum Installation Depth 1 in Maximum Material Thickness 1/2 in Ultimate Tension Strength (4 000 psi Concrete) 1 300 lb Pin-Drive Anchor Type Heavy Duty Nail-Drive Anchor System of Measurement Inch Compatible Material Concrete Masonry Manufacturer Location Made in USA