The Ford Barn

Ziffer · 08-01-2013, 04:31 PM

I have to thread some stainless rod and I have both fine and coarse split taps. I don't care if the threads are fine or coarse but I "seem to recall" reading somewhere that stainless was easier to thread with fine threads?

Thanks in advance for the advice.

Jack E/NJ · 08-01-2013, 05:23 PM

Easier to go to amazon.com and buy whatever SAE or metric stainless threaded rod you want. Not that expensive.

Jack E/NJ

rotorwrench · 08-01-2013, 05:23 PM

Fine thread pitch does have a more shallow depth to the cut so that would make the fine the easier of the two choices. Stainless is difficult to cut with either thread pitch. Use a lot of cutting oil.

Ziffer · 08-01-2013, 05:29 PM

Jack

I agree that if you can buy it is easier and since time is worth something as we get older that would be a wise call. I however, need to make some studs with a non threaded shoulder in the middle so I have to make what I need. If I only had a lathe.

Z

oldford2 · 08-01-2013, 05:35 PM

dies not taps

Pete · 08-01-2013, 05:39 PM

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Fine threads are easier to cut.
If your dies are adjustable, do the job in 2 passes.
It will make a cleaner thread.

Ross6860 · 08-01-2013, 05:46 PM

Quote:

Originally Posted by Ziffer

Jack

I agree that if you can buy it is easier and since time is worth something as we get older that would be a wise call. I however, need to make some studs with a non threaded shoulder in the middle so I have to make what I need. If I only had a lathe.

Z

May I ask why you need stainless (and there are many grades, magnetic and non-magnetic, see http://en.wikipedia.org/wiki/Stainless_steel for a decent description)?

Seen lots of stainless go together never to come apart. It may not corrode, but it galls like hell. Nickel-bearing teflon tape or high-quality anti-seize helps.

Good luck...

Jack E/NJ · 08-01-2013, 06:17 PM

ziffer>>>studs>>>

http://www.amazon.com/Stainless-Thre...ss+steel+studs

Jack E/NJ

Ross F-1 · 08-01-2013, 07:28 PM

Not sure what size you're talking about, but if you are expecting to take (say) 5/16" SS rod and run a 5/16" die over it, all I can say is good luck! I don't think you'll even get the die to bite until you grind it down a ways.

Bluebell · 08-01-2013, 09:18 PM

Ziffer, without looking, I think most stainless threads are rolled rather than cut.
You can buy stainless fasteners in different grades of stainless as well.
You could get it turned on a lathe. You should get a better result.

Ralph Moore · 08-01-2013, 09:20 PM

I tried threading my stainless radiator support rods, and ended up ruining the die and the rod. Man that stainless is harder than woodpecker lips!

08-01-2013, 04:31 PM	#1
Ziffer Senior Member Join Date: May 2010 Location: Michigan Posts: 171	Which is easier, threading stainless fine or coarse threads I have to thread some stainless rod and I have both fine and coarse split taps. I don't care if the threads are fine or coarse but I "seem to recall" reading somewhere that stainless was easier to thread with fine threads? Thanks in advance for the advice.

08-01-2013, 05:23 PM	#2
Jack E/NJ Senior Member Join Date: May 2010 Posts: 2,173	Re: Which is easier, threading stainless fine or coarse threads Easier to go to amazon.com and buy whatever SAE or metric stainless threaded rod you want. Not that expensive. Jack E/NJ

08-01-2013, 05:23 PM	#3
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,464	Re: Which is easier, threading stainless fine or coarse threads Fine thread pitch does have a more shallow depth to the cut so that would make the fine the easier of the two choices. Stainless is difficult to cut with either thread pitch. Use a lot of cutting oil.

08-01-2013, 05:29 PM	#4
Ziffer Senior Member Join Date: May 2010 Location: Michigan Posts: 171	Re: Which is easier, threading stainless fine or coarse threads Jack I agree that if you can buy it is easier and since time is worth something as we get older that would be a wise call. I however, need to make some studs with a non threaded shoulder in the middle so I have to make what I need. If I only had a lathe. Z

08-01-2013, 05:35 PM	#5
oldford2 Senior Member Join Date: May 2010 Location: pittsfield, MA Posts: 2,086	Re: Which is easier, threading stainless fine or coarse threads dies not taps

08-01-2013, 05:39 PM	#6
Pete Senior Member Join Date: May 2010 Location: Wa. Posts: 5,418	Re: Which is easier, threading stainless fine or coarse threads Sponsored Links (Register now to hide all advertisements) Fine threads are easier to cut. If your dies are adjustable, do the job in 2 passes. It will make a cleaner thread.

08-01-2013, 06:17 PM	#8
Jack E/NJ Senior Member Join Date: May 2010 Posts: 2,173	Re: Which is easier, threading stainless fine or coarse threads ziffer>>>studs>>> http://www.amazon.com/Stainless-Thre...ss+steel+studs Jack E/NJ

08-01-2013, 07:28 PM	#9
Ross F-1 Senior Member Join Date: Nov 2010 Location: NM Posts: 2,438	Re: Which is easier, threading stainless fine or coarse threads Not sure what size you're talking about, but if you are expecting to take (say) 5/16" SS rod and run a 5/16" die over it, all I can say is good luck! I don't think you'll even get the die to bite until you grind it down a ways. __________________ '52 F-1, EAB flathead

08-01-2013, 09:18 PM	#10
Bluebell Senior Member Join Date: Nov 2012 Location: Tauranga, New Zealand Posts: 726	Re: Which is easier, threading stainless fine or coarse threads Ziffer, without looking, I think most stainless threads are rolled rather than cut. You can buy stainless fasteners in different grades of stainless as well. You could get it turned on a lathe. You should get a better result.

08-01-2013, 09:20 PM	#11
Ralph Moore Senior Member Join Date: Oct 2010 Location: North Pole, Alaska Posts: 1,470	Re: Which is easier, threading stainless fine or coarse threads I tried threading my stainless radiator support rods, and ended up ruining the die and the rod. Man that stainless is harder than woodpecker lips!