Quote:
Originally Posted by TheDA
It's the coarse one by the looks of it, just wondered if you had a name for it.
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USS Coarse
if it's the fine one it's called SAE Fine
so if you want a nut you would ask for it two ways: a 3/8 x 16 nut or a 3/8 nut in USS Coarse thread.
Ask for bolts the same way except include the length.