Whats the name for the lefthand/righthand threaded rod between rod ends?

I want to say turnbuckle, but that doesn't turn up good results. Linkage adjuster? Doohickey?

Also, where do you find them?

I need a few in stainless, about 6" long, 1/4-28 thread.

Swedged tube

I dunno about that thread, but many sport bikes use something like that in their shifter linkage. May be a cheap source.

Can you use one of these:

https://www.mcmaster.com/turnbuckles/thread-size~1-4-28/

Female threads:

https://www.mcmaster.com/8419K61/

Male threads:

https://www.mcmaster.com/8420K63/

Dusterbd13-michael (Forum Supporter) said:

Swedged tube

That helps, I was thinking about a male-male version though.  From what I can see those all appear to be female-female.

Try this one

Surprisingly hard to find in fine thread

There are some male-male in the Mcmaster link that was posted. Aluminum instead of stainless though. 

mainlandboy said:

Can you use one of these:

https://www.mcmaster.com/turnbuckles/thread-size~1-4-28/

 

These maybe, I was hoping for stainless though.  

https://www.mcmaster.com/8420K63/

If these were longer and stainless: https://steinjager.com/shop/Jack-Screw-Turnbuckles-1-4-28-Plated-Zinc-Yellow-1.776-Inches-Long-1-Pack-J0028419

Speedway seems to have a bunch of semi-applicable stuff in their throttle linkage section.  Summit and Jegs probably do as well.  Going to dig through them a bit more

turnbuckle

tie rod?

You're probably looking at a fabricated part to get that in stainless.  Fortunately ss hex stock is readily available. While it would be nice to use a lathe the ends could be drilled in a drill press or even (if you're more patient the I am) with a hand drill.

Metric, so not excactly what you are looking for, but just ordered/recieved these for droplinks: https://www.ebay.com/itm/181162903001

Turnbuckle style connecting rods.

Why do you need SS?

https://www.mcmaster.com/turnbuckle-style-threaded-connecting-rods/

Also: Double adjustable male turnbuckle, but I can't find any in your size by that name.

Try amazon. There are a few RC cars that use turnbuckles in that size. You even find them in titanium for a reasonable price. Just used a bunch of this stuff to make a throttle linakage for dual carbs. 

Whatever you do, do not google "male on male rod end" please. 

I came here to say turnbuckle...got advice to not google male on male rod end.   I’ll allow it. 

Rock Auto calls them Tie Rod End Adjusting Sleeve.  I call them Tie rod sleeves, or tie rod couplers.

Either way, fancy name for turnbuckle.