john smith wrote:
See this webpage for bolt head identifications

http://shopswarf.orcon.net.nz/boltid.htm

That's SAE; ie. automotive. If you see any of those in a certificated aircraft
in the U.S., you probably need to replace them.

George Patterson
Why do men's hearts beat faster, knees get weak, throats become dry,
and they think irrationally when a woman wears leather clothing?
Because she smells like a new truck.