"EPA/GOV HAS DETERMINED NOT TO USE CADMIUM; CONTACT DCSC-SSI; PIECE IS STAMPED WHICH END IS LEFT HAND THREADS AND WHICH END IS RIGHT HAND THREADS; SIDE HEX HAS 4 DRILLED 0.061-0.066 INCH HOLES SPACED 0.625 INCH FROM BOTH ENDS,2 PER END; USED ON A-6E AIRCRAFT"