Name for Special Threaded Ring for Adjuster?

I would call it "adjusting knob" and then give the the same description as you used, and/or a drawing. It seemed pretty clear to me.

It sounds like a locking nut that you could tighten with your fingers (large diameter + knurled) in place of a normal nut which needs a spanner and is less accessible. Like this but with your piece in place of the nut.

The last I recall was the locknut to the flash attachment used with the older 35mm cameras.

Good answer!

But he did say that he wanted Al.

Wouldn't you say Al is rather weak, both for the threads and the knurling ? i would recommend brass...or even plastic with a threaded brass insert...

Material selection depends on final intended use and cost parameters. He could go for injection moulded plastic, sintered bronze overmoulded rubber ..... As you indicate he will find many options now that he has some search names to use.

In "The good old days" such knurled thumbwheels were used to adjust pairs of compasses used in geometry to draw circles. Now we use the knurled thumbwheel on our mouse.

perfect again but whats it called

Please click on the hyperlink i gave in post # 3. It will give you many webpages, and you may find a source near where you live, good luck.

Also known as a "thumb nut".

I agree, it's a thumb nut. Alum. is often used for adjusting equipment up down side to side. what you need would not have the bottom part (C & D)

Thats it exactly. Do you know who makes these?

Thanks

OD knurled; ID machine threaded, disc washer

seems like:

in german it's called "Rändelmutter"

I believe what your looking for is called a thumb nut McMaster Carr has them in about the size you described.

excellent. thanks

Note John that you do not want to lock the thumb nut with a set screw. The screw will damage the threads and make adjusting it by hand difficult. You want to use two nuts and jam one against the other.

There are nylon-tipped setscrews that might work.

Walk across the shop to the drill press. Mine has a couple of them to stop the depth and recoil and are very adjustable.

It would be easy to get the disc made and then insert one of these:

internally threaded rivets

Good luck, Ky.

I think you mean to a " LEVELLER " Nut?

OK, WOW you guys are really great. I've got tons of info now. Thanks a lot.

John

This component you wish is called a "thumb nut", McMaster Carr has an online catalog.

Try page 3195 catalog number 116.

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Call Penske shocks and ask them what they call them. Maybe even get a supplier name.

a knurled thread lock.

(similar to a lock knut or jam nut)