Help with name for a type of bolt

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Forum topic by woodguy1980 posted 02-02-2016 01:24 PM 884 views 0 times favorited 17 replies Add to Favorites Watch
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6 posts in 263 days

02-02-2016 01:24 PM

Hi everyone,

I’m working on a project that is using a bolt that is screwed/unscrewed to adjust a part horizontally. The spacing is fairly tight and adjustments would be much easier if I had a turn knob that was above the screw. If you look at the symbols below, the 3 + signs would be the knob. If you’re looking down on the knob from above, it should turn clockwise to tighten the bolt and counter-clockwise to loosen the bolt.

I’ve tried searching online but can’t seem to find anything that would work. Does anyone out there know the name of this type of bolt/setup and where I could buy some?

+++ (knob)
|=========== (bolt)


17 replies so far

View bondogaposis's profile


3969 posts in 1769 days

#1 posted 02-02-2016 01:29 PM

Huh, from your description I have no idea what you are talking about.

-- Bondo Gaposis

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4023 posts in 1617 days

#2 posted 02-02-2016 01:29 PM



-- Brad in FL - To be old and wise, you must first be young and stupid

View TheWoodRaccoon's profile


361 posts in 348 days

#3 posted 02-02-2016 01:43 PM

I’m pretty sure you mean a “hand wheel” or “crank”, right?

-- still trying to think of a clever signature......

View HokieKen's profile


1519 posts in 556 days

#4 posted 02-02-2016 06:08 PM

From the description, I think the OP wants a knob that is at a right angle to the bolt. If that’s the case, I don’t know of a simple solution. Bevel gears of some sort but how to mount/mate them could be tricky if you’ve got limited space.

-- Kenny, SW VA, Go Hokies!!!

View MadMark's profile


965 posts in 871 days

#5 posted 02-02-2016 06:22 PM

Worm gear



-- Madmark -

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Bill White

4403 posts in 3378 days

#6 posted 02-02-2016 07:03 PM

Now let’s see…......
I don’t see.
No help here without a pic of some sort.


View KentInOttawa's profile


55 posts in 1214 days

#7 posted 02-02-2016 07:08 PM

Check out Matthias Wendal’s page on making right angle gears. Between the video and the text, you should have a starting point for your mod.

-- Natasha: You got plan dollink? Boris: I always got plan! They don't ever work, but I always got one. (

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Rick M.

7681 posts in 1798 days

#8 posted 02-02-2016 09:17 PM



View oldnovice's profile


5648 posts in 2786 days

#9 posted 02-03-2016 12:25 AM

Does this project of mine help?

-- "I never met a board I didn't like!"

View bandit571's profile


14050 posts in 2101 days

#10 posted 02-03-2016 12:29 AM

Picked these bolts up today..

-- A Planer? I'M the planer, this is what I use

View Pointer's profile


363 posts in 529 days

#11 posted 02-03-2016 01:42 AM

If I’m hearin’ what you’re sayin’, I think MadMark’s post is the closest thing to what you are talking about.

-- Joe - - Laughter is like a windshied wiper, it doesn't stop the rain but allows us to keep going.

View distrbd's profile


2219 posts in 1864 days

#12 posted 02-03-2016 02:22 AM

could it be something like a drill depth collar or shaft collar?

Or mirror arm extender screw:

-- Ken from Ontario, Canada

View 716's profile


502 posts in 334 days

#13 posted 02-03-2016 02:45 AM


-- It's nice!

View 716's profile


502 posts in 334 days

#14 posted 02-03-2016 02:51 AM

Oh I got it ! It is a guitar tuner. Right ?

-- It's nice!

View woodguy1980's profile


6 posts in 263 days

#15 posted 02-03-2016 05:43 AM

Sorry about the unclear description. I guess I should have drawn a quick sketch in paint. However, with my drawing skills, it may have caused even more confusion.

MadMark and 716 are spot on with what I was referring to. In fact, a guitar tuner with some slight modifications may be the ticket. The bolt I’m using is relatively small (6-32) so I think the size of a guitar tuner would be a good starting point.

Aside from searching for guitar tuners, would the technical name for this be a worm gear? Just trying to determine the best way to search for different sizes.

Thanks again everyone!

showing 1 through 15 of 17 replies

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