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


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