Securing chassis from side, what hardware?

[eddie25]

I would like to get into securing my chassis from the side of my cabs. Ideally I would only need to drill circular holes, I'm sick of filing square holes for cage nuts. I fixed a verellen amp years back that had some nice hardware that was low profile. I think it was two peices that screwed together leaving a nice insert for a machine screw, but I have no idea what it was called. Anyone out there really know their hardware lingo?

Thanks!

[davent]

I've attached pieces of plywood with threaded inserts to the ends of the chassis and connected to those through the sides of the cab. Sheet metal screws from inside the chassis into the plywood.
[IMG:801:596]http://i216.photobucket.com/albums/cc30 ... 2921-1.jpg[/img]
[IMG:804:603]http://i216.photobucket.com/albums/cc30 ... 2914-1.jpg[/img]
[IMG:800:600]http://i216.photobucket.com/albums/cc30 ... G_2918.jpg[/img]
dave

[bal704]

Can you use a nutsert in the chassis, with a screw/finish washer through the cab?

[eddie25]

Can you use a nutsert in the chassis, with a screw/finish washer through the cab?

Yeah, that mught be what I'm talking about. I just didn't know the name. Most seem to be installed like rivets though, which I would like to avoid. Is there a similar type of hardware that uses a nut on the inside of the chassis for installation instead?

[bal704]

You just drill a hole, screw the insert onto the tip of the tool, put the insert in the hole, and squeeze. Instant 'nut' inside the chassis.

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

[JMFahey]

I know 3 ways to do it:
1) the one I use, the threaded rivet, similar as shown above.
You don't want "rivets" but it's the easiest fastest way, you just drill the proper hole and preferrably do *not* deburr it nor want it perfect, because in this case that helps griping the rivet/nut and avoid turning loose.
2) you punch square holes and install sqare wing nuts.
Fine if you can punch sheet metal and have the proper square dies (I do), otherwise filing is murder.
3) there are some quite flat threaded inserts with a short star shaped stub on one side, which gets embedded in the sheet metal thickness, is the best but you need a hydraulic press or a heavy flywheel mechanical punch press, not easy for the amateur, I don't have them either

So, at a small scale, the threaded insert riveter is best.

There's a 4th method, a split nylon insert where a standard wood or drywall fine point screw can bite, but it also requires a square hole, so .....

[davent]

Those Rivnut tools look to be just the ticket and may have a local source, thanks!
dave

[statorvane]

I've attached pieces of plywood with threaded inserts to the ends of the chassis and connected to those through the sides of the cab.

Cool lookin' amp.

[stretch2011]

There is a type of cage nut used a lot in the automotive industry where it's a flat piece of metal bent in a "U" shape with one side having a hole and the other having a threaded hole. If you have end pieces without lips you could drill a hole in the side and slide the "U" shaped nut onto it.

If I remember right you can find them at Lowe's maybe auto zone.
They are used in cars.

[sliberty]

Those Rivnut tools look to be just the ticket and may have a local source, thanks!
dave

I have a Blues Junior cabinet that I picked up from a CL seller. These have screws that hang the chassis from the top, and they also have screws that secure the chassis from the side. I used Rivnuts for these side holes, and the worked out perfectly. They jut into the chassis a bit, so plan accordingly.

[davent]

Picked up some Rivnuts and the setting tool yesterday, haven't tried it yet but looks to be better then sliced bread! Thanks for the enlightenment.
dave