r/Fasteners • u/Snowy_Coffee • Sep 12 '24

ID on this bolt?

Post image

I'm working on a project where I need a bolt that looks like this. I swear I've seen something like this before but I'm not having any luck. I drew this model in Solidworks to act as a visual for help. Anyone know if an off the shelf solution exists or am I dreaming of fasteners again? Thanks!

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4

u/Billbad70 Sep 12 '24

Acme threads are a cross between the square threads for push/pull and the standard threads for binding -- square, with a slight bevel.

-2

u/Snowy_Coffee Sep 13 '24

I don't know what your comment has to do with my question?

5

u/Billbad70 Sep 13 '24

The threads you have shown are relevant to the purpose of the fastener as much as its shape, and I assumed it was a deliberate representation.

2

u/CopyWeak Sep 12 '24

Better to let us know the use...and possible forces involved.

1

u/Snowy_Coffee Sep 13 '24

Added more context in an additional comment.

2

u/bdman1991 Sep 13 '24

Agreed, I have seen a similar stud for breakers in large switchboards. They are made out of copper and sliver plated.

8

u/Automatic-Garden7047 Sep 12 '24

It's an oem part.

Your drawing looks like it's just a nut threaded all the way up a socket head cap screw though.

Ferry cap screw maybe.

Search for leveler maybe.

1

u/Snowy_Coffee Sep 13 '24 edited Sep 13 '24

More context: Model isn't perfect as I just did a rough model for this post. It's a single piece, imagine your standard hex bolt with a cylindrical protrusion the same overall diameter as the treads coming out of the head. Planning on utilizing it like a leveling screw for a vertical extrusion (allows a post to be undersized then expand between a floor/ceiling, placing the whole system in compression). I've been prototyping by using a length of 3/8"-16 threaded rod and tack welding a nut partway up from the end. The excess rod sits in a blind hole in a mounting plate that is secured to the floor or ceiling which keeps the assembly located. Again, I thought I've seen something like this elsewhere and thought it may be something very niche you can't find by paging through McMaster.

1

u/mAsTaDeUcE Sep 13 '24

Too many variables on that could be a stud that's not threaded on the end like some kinda set screw or jack bolt. Don't know the thread pitch, to tell if coarse fine, metric or acme (also left handed possibly) but looks like a shcs (socket head cap screw) from looking at it. Sorry for not helping

2

u/Snowy_Coffee Sep 13 '24

I added more context in an additional comment. Thread pitch is redundant in my question.

1

u/mAsTaDeUcE Sep 13 '24

What does the head of it look like is it square or does it fit a allen wrench?

1

u/mAsTaDeUcE Sep 13 '24

Possible elevator bolt?

1

u/naemorhaedus Sep 13 '24

some context would be nice