> Does anybody know the provenance of this bolt? It looks aerospacey.
     > The letters on the head are B30US8 and the other edge has a cursive
     > type 'A'
     > I was wondering about using them for mounting the motor.
     >
     > Chris Cosman
     >
     > Chris,
     > By the large radius under the head, it is most likely a structural
     > bolt.
     > If you have a spare, you could hardness test it. Probably way
     > stronger than
     > you need.
     > Larry

     > Its a nickel alloy 718 bolt, 1/2-20 UNJF-3A thread, with 220 ksi min
     > tensile and 125 kis min shear strength (very strong, well above
grade
     > 8). If its used in high fatigue applications, it should be limited
to
     > about 114 ksi.
     >
     > John Bell



    Thanks John.  Where did you get your info?

    Chris


I agree that that's a high temperature Inconel 718 bolt.  I have the spec in
my office but I'm snowed in so far this morning.

The issue is that it does you no good without the nut.  I'll get the spec on
those, too.

-Ben


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