Does anybody know what bolt size I need for those gas tank straps on an 81ish chevy c30? I lost one of the bolts and the other bolt is kind of a pain to take off an on again.
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What is the head size of the one which remains? If it's a 9/16" head, it's more than likely a 3/8"-16 thread. You'd just have to ensure the bolt is long enough. If you can give me the head size, I can figure out what the thread is for you.– Pᴀᴜʟsᴛᴇʀ2 ♦Apr 1 '19 at 16:34
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sorry my bad, its a knut that goes on the end of one these things 1aauto.com/fuel-tank-with-strap-set/i/…– volareApr 1 '19 at 16:35
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Still, what is the head size of the nut (or opposing bolt)?– Pᴀᴜʟsᴛᴇʀ2 ♦Apr 1 '19 at 16:36
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It is a 5/8 head– volareApr 1 '19 at 16:45
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1It is most likely a 7/16"-14 thread. Most nuts/bolts of this type are coarse threaded. I'm surprised, though ... usually these are captured nuts, to make installation easier. You sure something isn't rusted through?– Pᴀᴜʟsᴛᴇʀ2 ♦Apr 1 '19 at 16:50
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Annnnd the winner is 3/8-16. Thanks for playing folks.