Help idea?

[jackpilot]

Is there some kind of nut wich would be round and flat ie: more decorative than an hex?

[Steve A]

What about a knurled locking ring

[Boeing Skunk Works]

There is, but I can't remember what they are called. It's a large flat headed screw with a threaded axle that screws into a similar shaped piece with an inside threaded shaft. They come in specific lengths and they don't screw together any tighter than that length.

I used them on my throttle shaft reverser pivot points. I just can't remember what they call them.

[Trevor Hale]

How about this Jack?

http://rocky.digikey.com/weblib/ITT%20Cannon/Web%20photos/709901201.jpg

[jackpilot]

Steve:
It has to be fairly small the bolt is about 3mm diam
Mike:
If it comes back please advise..sounds good
Trev:
the link is just the pic, any specs like bore,  diameter, thread..
Thank you guys.

[shaneb]

Hey Jack,

I think what Mike is talking about is similiar to what is called a "chicago screw" used in leather work.  Here is a link:

http://www.loonfeatherleather.com/Category/main.taf?cat=4&pc=11

This is only similiar to what Mike is talking about as the lengths here are very short . . however there is a similiar product with longer lengths. The ones I have seen are made of aluminum and probably other materials and are available in the states at Lowe's hardware stores.  Maybe this will help a little.

[shaneb]

Hey Jack,

Here is a better link:

http://www.fastenal.com/web/products.ex?N=999600052&in_dim_search=1

I think what Mike is talking about is "binding post screws".  Not sure of all the sizes available but have a look thru the above link, maybe you can find something useful.

[jackpilot]

Yup...That's it
Actually just the post part is useful as the thread is 8-32, it can accept any screw.
I'll try to find it locally. (I have no use for ten of them at $25.)
Great find.

[shaneb]

You should be able to find them locally . . I think the price at Lowes was about $1.50 for two.

[Boeing Skunk Works]

That's it! A Chicago screw. I guess they must have been invented there. Don't know, but I sure couldn't think of the name of them.

[XOrionFE]

hmmmm first "Cheesehead Screws" then "Chicago Screws".....

Leave it up to a bunch of simbuilders to get into needing these types of things.....

LOL

[jackpilot]

Note: also called Sex bolts ....obvious!
or even better:
Closed head female binding

Hardware romance....

http://www.fastenal.com/web/products.ex?N=999608636&in_dim_search=1

[shaneb]

 . . who comes up with these names?                  


    ... quite entertaining, I bet they do that just for us cockpit builders         

[scorpioflyer]

Jack

Have a look at this picture.

http://www.airliners.net/photo/Untitled-%28Saeta%29/Boeing-727-282-Adv/1391666/&sid=b383675af8b84b4cabf7159772f8828c

It's a throttle quadrant from a 727. If you look at throttle no.2 the bolt head is countersunk, rather than flat. I can get you the part number and then you can google a local distributor.

[jackpilot]

You are going to make Mike cry with that pic!

Actually on my design, the outside bolt will be countersunk too and the flat part will be on the inside-side.
Your access to the old bird is precious, we certainly will take advantage of it!
Have a good one..
JP