Cres, class 303, cond a, per qq-s-764; alternate matl: cres, class 304, per ams5370; passivate, type ii, per qq-p-35 (580-0025-000); 0.625 in. O/a dia; two parallel flatted sides 0.500 in. Across; countersunk top is truncated 20 deg; bottom hole 0.216 in. Diameter augmented to 0.250 in. On two sides in position corresponding to parallel sides; bottom hole center 0.375 in. From highest edge; o/a ht 0.437
