ANCHOR SIZE 1/4 INCH; DRILL SIZE 1/2 INCH; EMBED DEPTH 7/8 INCH; LOAD RATING 1870 LB FOR 2000 PSI, 2340 LB FOR 4000 PSI, 2440 LB FOR 6000 PSI CONCRETE; MATERIAL ANTIMONIAL LEAD-ZAMAC 7 ALLOY; TPI 20; TYPE MACHINE BOLT; POWERS. BRAND