Sweet wings crank bolt?

wesmamyke

Old School Hero
I am trying to piece together a pair of sweet wings cranks that are missing some things. Currently missing the BB cup with the long spacer attached and the crank bolt. Have tons of hardware here but nothing will even thread in. It's possible the threads are damaged, but does anyone know the correct bolt size/spec? It's a course thread thing of some sort, and I suspect it might be imperial/american.

There was a thread on here from someone who seemed to have all the old stock of parts from the company, but it was years old. Thanks, and sorry if this should go in the other forum. I also don't actually know the year these were made exactly.
 
You should be able to see if the threads are damaged. Not sure on the size but given Americans’ aversion to anything metric I’d say it’s likely 3/8” UNC or thereabouts, you’ll have to have a cheeky measure…5/16” maybe.
The ‘bolt’ on mine is a very heavy, steel cap head screw, I can’t measure it as all my gear is in storage.🤔
They came out in ’95 btw.🤙
 
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