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Old 03-09-2013, 09:37   #1
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Line on good stainless steel (316) threaded rod?

I'm trying to source a high quality piece of double end threaded 316 rod for my bow roller pin. Any ideas?

I have tried mcmaster carr but they only have the 316 rod in 1/2" fully threaded, at least what I can find. My pin services two rollers on either side of my bowsprit, with the pin going through the bowsprit.
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Old 03-09-2013, 10:06   #2
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Re: Line on good stainless steel (316) threaded rod?

Seems like a bit of 1/2 inch rod with threads chased or cut with a die on each end will be the answer, not a standard part. Not a big deal at all to make.

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Old 03-09-2013, 10:43   #3
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Re: Line on good stainless steel (316) threaded rod?

That was the other option. I guess I could order the rod unthreaded and take it to lowes or home depot to get it threaded.

Is "cold finished" or "Hot rolled" stronger for this purpose?
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Old 03-09-2013, 10:56   #4
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Re: Line on good stainless steel (316) threaded rod?

Buy a bolt in a length that will be unthreaded in the roller. cut the threaded part off to make it the length you need outside the roller. Why have nuts on both ends?
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Old 03-09-2013, 10:57   #5
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Re: Line on good stainless steel (316) threaded rod?

Quote:
Originally Posted by zboss View Post
That was the other option. I guess I could order the rod unthreaded and take it to lowes or home depot to get it threaded.

Is "cold finished" or "Hot rolled" stronger for this purpose?
I don't know if Lowes/HD offer this sort of service, but any machine shop would be able to do it.

And "cold finished" will have a better surface for the rollers to work on, but there should be no particular strength difference.

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Old 03-09-2013, 11:04   #6
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Re: Line on good stainless steel (316) threaded rod?

Metals that are cold finished at the mill will have a slightly higher strength (not that it should matter in your application). The reason is the metal is "worked" slightly from the cold pass. (kinda like bending a steel wire... it becomes less bendable after a couple bends... until it starts failing anyway.) It's inconsequential though.
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Old 03-09-2013, 11:05   #7
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Re: Line on good stainless steel (316) threaded rod?

i found mine in downwind marine in sd.... i dont know what their source is but i am sure they could enlighten ye if you speak with em there.. nice folks

i just shoulda bought m0re ...
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Old 03-09-2013, 11:12   #8
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Re: Line on good stainless steel (316) threaded rod?

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Originally Posted by Cheechako View Post
Buy a bolt in a length that will be unthreaded in the roller. cut the threaded part off to make it the length you need outside the roller. Why have nuts on both ends?
I hadn't though about that.. The cabo's are really thought out well and its currently set up with bolts at both ends; I assumed that there was a reason for that design.

That's a good idea though.

However, I still have to get the rod out! The current pin is seized to the port roller, so when you turn the roller, the pin turns and vice versa.

EDIT: They don't seem to make 16" bolts in 316 stainless steel. That's probably why they used rods with threads on the ends.
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