HAMMER DRIVE, NAIL-IN, ZAMAC TYPE; ZAMAC ZINC ALLOY, STEEL (NAIL) MATERIAL; ZINC PLATED FINISH; 1-1/2 INCH ANCHOR LENGTH; 1300 LB (PULLOUT), 325 LB AT 4000 PSI FOR CONCRETE LOAD RATING; 1/4 INCH DRILL SIZE; MUSHROOM HEAD TYPE; 1/4 INCH ANCHOR SIZE