ANCHOR LENGTH 2-1/2 INCH; ANCHOR SIZE 1/2 INCH; DRILL SIZE 7/8 INCH; LOAD RATING 6570 LB FOR 2000 PSI, 9065 LB FOR 4000 PSI, 9250 LB FOR 6000 PSI CONCRETE; MATERIAL ZAMAC 7 ALLOY; THREAD LENGTH 3/4 INCH; TPI 13; TYPE DOUBLE EXPANSION; POWERS. BRAND