sigh007 发表于 2012-3-26 13:42:11

MIL-STD-1761


                   MIL-STD-1761, MILITARY STANDARD, FASTENER RECESS TEST, METHOD FOR DAMAGE TOLERANCE EVALUATION (6 JUL 1979)., This military standard describes a standard test procedure for the evaluation of fastener internal recess drive damage tolerance in terms of their torque         
         
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