Does anybody on this group know of a supplier of cup
square coach bolts in 3/16th BSF? I need a couple of these
to repair the airconditioning fans in my car. Each fan has
two 3 inch bolts, and the square behind the head seats
in a square hole in the casing, which is about 3/16th,
or roughly 4.5mm. The other half of the casing is then
secured by a nut on the end of the bolt.

It seems impossible to get coach bolts in anything less
than M6 thread, which is of course far too long.

I could possible make do with a plain hex head bolt,
but would like to replace the original bolts.

Is anybody able to help me out here?

thanks,

Michael

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