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Nut Identification

Nut Identification

Nut Identification

(OP)
Hi
I am looking for a M8 nut that has half a hex body (about 13mm)  and half a small diameter (11mm ish) round.
Can anyone tell me 1. what is this type of nut called, 2. who sells/makes them.
Thanks

RE: Nut Identification

Acorn nut. unless the round portion has a nylon insert, then its a nylock nut.

RE: Nut Identification

(OP)
Thanks NickE, I should have said cylinder instead of round with the treaded hole being thru.
Below is an asci "cross section"
___   ___
|  |  |  |  <Hex 13 mm ish
|  |  |  |
 | |  | |   <cylinder 11 mm ish
 | |  | |
 --   --
    ^
    M8 X 1 thru

RE: Nut Identification

is it a type of insert nut? IE: the 11mm portion goes into a tight fit hole, the hex is used for tightening. Does the thread change at any point in the length. I know Ive seen nuts like this before, maybe in electronics for standing off of PC boards.

Hmmmmm..... I'll sleep on this one an catch you back tomorrow....

RE: Nut Identification

(OP)
This is to bolt a product that we make to a Product/stud we do not make. The studs use to be longer and we had the room to use a standard nut. Now we can only engage 2-3 threads so we need this design to engage a reasonable number of threads.   I can change the OD of the piece that the nut goes through. I am trying to avoid designing and having this part made.
Cheers

RE: Nut Identification

I think you best bet would be to get a M8 coupling nut of the appropriate  length and turn down one end to your desired dia.  You are going to have a very thin wall nut that will not take much load.  
As stated I’ve seen this type nut in smaller diameters mostly without hex heads.  I have seen a very similar nut made, but with a much longer column.  It was more like a sex bolt and nut.
I’ll still ask around to see if someone has this design on the shelf.

How many do you need?

What material do you need?

RE: Nut Identification

(OP)
Usage is only about 750 a year, material steel either stainless or clear zinc plated.

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