A retention clip cooperates with a bolt and a flange through which the bolt passes to retain the bolt during blind assembly. Opening 28 in flange 26 receives bolt 24. Retention clip 40 is retained with extension 50 in recess 34 by engagement of the clip with the bolt. The clip in turn retains bolt 24...http://www.google.de/patents/US4887949?utm_source=gb-gplus-sharePatent US4887949 - Bolt retention apparatus
