Chassis fasteners : extruded U nuts !

[xtian]

I LOVE these!

https://www.mcmaster.com/mv1478814336/# ... /94850A129

[Stevem]

With those on a heavy Fender chassis like a silver face pro of twin you still need to run in the 3 rear upper screws that pass thru the lip and into the wood.
Don't ask me how I know this!

[JMFahey]

Thanks for the link

That said, I wonder why do they call them "extruded" , they are anything but.

What I see is a punched and stamped part, made out of spring steel, which later gets heat treated to become a spring proper (very hard and elastic).

Extruded implies pushing a soft metal (think aluminum) through a shaped die, under such temperature and pressure that it behaves like a paste, absolutely different.
And extruded metals are not springy, quite the opposite .

[TUBEDUDE]

Marketing? Like Corinthian Leather? How did Corinthians feel about that I wonder.

[xtian]

@JM, I know, weird name.

Anyway, I just added these to another chassis that had failing #8 threaded holes. I had to cut off the "lip" of the fasteners so I could slide them very close to the edge where the holes needed to be. Just used a Dremel with cut-off disc, and it went like butter.

[Kagliostro]

I prefer Trheaded Rivets

[img:343:222]http://rivetsonline.com/blind-threaded-inserts.jpg[/img]

[img:902:472]http://rivetsonline.com/L_series_rivet_nut.jpg[/img]

https://youtu.be/sz2yZNqGNqo

Despite what can be say they are simple to install also without special tools

K

[mrn1ngstr]

About halfway down the page.

http://hoffmanamps.com/MyStore/perlshop ... D=!ORDERID!

[Kagliostro]

The link didn't work for me

K

[mrn1ngstr]

for some reason the last bit won't hyperlink. Copy and paste the whole thing. Anyway, he's got both clip nuts and rivet nuts.

[Kagliostro]

Doing that the link is OK

Franco

p.s.: Those treaded rivets you see on EL34World are there because I showed them to Doug

[norburybrook]

I prefer Trheaded Rivets

[img:343:222]http://rivetsonline.com/blind-threaded-inserts.jpg[/img]

[img:902:472]http://rivetsonline.com/L_series_rivet_nut.jpg[/img]

https://youtu.be/sz2yZNqGNqo

Despite what can be say they are simple to install also without special tools

K

they would have been perfect if I'd seen them earlier. How do you install though without special tools?

Marcus

[bal704]

Something like this...pretty cheap at your local hardware store.

http://www.harborfreight.com/45-piece-t ... -1210.html

[Kagliostro]

I use something like that that I build with a mod to a riveter

[img1000]http://seashoretradingqatar.com/Images/ ... 39_HIG.jpg[/img]

but is not really indispensable

You can simply use a bolt, a pair of washers and a long nut (like tis)

[img:303:242]http://www.utensileriaeferramenta.com/p ... -5_big.jpg[/img]

On this video you can see an easy way to mount it without special tools

(this is the way I use)

https://www.youtube.com/watch?v=xwSzoDyjWA8

here other similar ways

https://www.youtube.com/watch?v=AfQIYLSKGwI

https://www.youtube.com/watch?v=9HcSeSzSJGI

K

[MakerDP]

...
On this video you can see an easy way to mount it without special tools

(this is the way I use)

https://www.youtube.com/watch?v=xwSzoDyjWA8

...

K

Oh man thanks for that video! I have had nothing but bad luck trying to install the rivnuts I ordered from Doug a while back so I gave up on them. That video makes it look so easy now! I saw the other two you linked but never that one. I still have a bunch in my fastener box so I will give them another try.

I know that once I figure these out I will never go back to any other mounting method.

[Kagliostro]

I use a smaller long threaded nut, so I drilled it inside as to eliminate the thread

this way the bolt can turn free (but you can use a larger nut respect to the bolt and the effect is the same)

---

When you use this trick only pay attention when you turn the bolt, don't give it too much turns

Ciao

K