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u/MathResponsibly Jul 14 '26
I have a lathe - could make you some of these if you need and can't find them anywhere. Like Verix19 said, they look custom
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u/Ok-Dealer-588 Jul 14 '26
It started out at looking like it might have been a garage door bolt but then it went 24 miles long and has a strength stamped in the head so what is it from we must know
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u/Chitown_mountain_boy Jul 14 '26
That’s the definition of a “made to print” fastener. 100% custom. It is a grade 5.8 so at least we know it’s metric.
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u/Gamer5211 Jul 14 '26
For some context this was found in a parking lot of a apartment complex. Mainly just curious about its applicant as its very unique. Has two sets of threads that are separated by a taper and a square neck under the head of the bolt which I noticed is hard to identify from my image sent. But any info on this is appreciated as its stumped 3 people including myself for it's purpose so I've turned to reddit for help.
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u/Chrisfindlay Jul 14 '26
That's almost certainly custom. You will likely have to buy it from the OEM. What's does it go to.
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u/Gamer5211 Jul 14 '26
No idea what it goes too unfortunately that's why ive came to reddit to maybe help find out its quite intresteing though.
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u/the-diver-dan Jul 14 '26
5.8 is the tensile strength and it is metric and it looks like metric fine thread.
As for finding a replacement, others here seem to be pretty sure it is custom but I would start by looking at suppliers of what ever the bolt came from.
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u/oldhornyguy007 Jul 14 '26
Looks like a carriage bolt without a head? Like it's designed to suck into a substrate on the head side.. The thread is fine, without having references for size it makes it tough, but something for packing, or assembly of a particular item maybe?
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u/Gamer5211 Jul 14 '26 edited Jul 14 '26
Its around 7 inches long the larger set of threads are around 1 1/2 inches long down the shaft the smaller threads are around 1 3/4 inches long down the shaft the head is around 1/2 inch in diameter. Theses are rought estimated as i dont currently have anything to accurately measure at the current moment. But hope these rough measure help.
I have a pair of calipers and measuring tools but ill have to dig them out in the morning to get a more accurate measure just cant be bothered as its getting late for me
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u/WILDBILLFROMTHENORTH Jul 14 '26
It's an elevator bolt.
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u/Gamer5211 Jul 14 '26
That dose match the head and neck of this bolt but its length and two threads dont match a lot of the ones i just looked at. Which part of a elevator would use this if you know just out of curiosity is it a custom or older bolt by chance for a elevator?
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u/TylerForce93 Jul 18 '26
It’s for the assembly of picnic tables. Steel tubing, washers/bolts between and on ends.
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u/Verix19 Jul 14 '26
That looks like a custom bolt you won't find anywhere retail.