"STEEL QQ-S-685 OR AMS 6353,CADMIUM PLATE QQ-P-416 TYPE II CL 2,HEAT TREAT 150000 TO 200000 PSI,2.32 IN. LG,0.62 IN. W,0.14 IN. H,0.194 PORM 0.005 IN. DIA MTG HOLES SPACED 1.000 P 0.005 IN. C TO C AND COUNTERSUNK 100 DEG BY 0.40 IN. DIA,HOLES EQUALLY SPACED AND CENTERED ON SAME CENTER LINE"