24 replies to this topic

[peter-b]

The pliers type work fine on the smaller sizes, you don't have the squash the crap out of them, just enough to hold them, the tightening of the bolt you fitting to it will squish it up more. With the bigger ones or ones you wont need very often, you don't need the pliers, just a nut, bolt and washer to fit them.

[fenghuang]

... With the bigger ones or ones you wont need very often, you don't need the pliers, just a nut, bolt and washer to fit them.

Do you mean it's worth using a washer between the rivnut and the panel it's fitted to, or just for the bolt you fit to it? If it's for the rivnut, which side of the panel?

[nicklouse]

... With the bigger ones or ones you wont need very often, you don't need the pliers, just a nut, bolt and washer to fit them.

Do you mean it's worth using a washer between the rivnut and the panel it's fitted to, or just for the bolt you fit to it? If it's for the rivnut, which side of the panel?

Nope the washer is when you are not using the tool. So the nut has something to press on while not trying to turn the rivenut.

[fenghuang]

Ah. So you put a washer onto the trhreaded part of the tool before threading on the rivnut itself, right?

[nicklouse]

Ah. So you put a washer onto the trhreaded part of the tool before threading on the rivnut itself, right?

This is with no tool.

Edited by nicklouse, 21 June 2015 - 04:16 PM.

[fenghuang]

Ah. Gotcha!

[peter-b]

Here's that a bit more detailed. This to fit them WITHOUT tool. Example size 3/8"
First you need bolt approximately 2" long with full thread, a nut to suit and a flat washer. A bit of lube for threads.
Screw the nut all the way onto bolt, then washer, then rivnut insert with the flange end towards washer. Put on till theres bolt thread protruding a bit out end.
Then put it into hole drilled to correct size.
Using two spanners, one holding bolt from turning, tighten the nut down to compress the insert till it feels firm in hole.
Release nut and unscrew bolt out of insert.
As i mentioned, you don't need to fully compress it, this will happen when you tighten the attachment on.
It's important to have some sort of lube/rust proofing on bolts as if the bolt(s) seize in insert its a bugger to get undone, especially On blind panels.

Sorry if I over simplified it for some.

[ibrooks]

It's also worth making sure it's a decent grade of bolt - socket caps will almost always be 10.9 at least so they are a good bet.

 

There's a lot of 4.8 rubbish coming out of the far east nowadays - there was a time when you had to hunt to find bolts that soft if you needed them for something.

[thedjse]

I use this one works a treat http://www.ebay.co.u...=item439bcca0a4

 

I have this one nice peice of kit and use it quite alot

[Icey]

I bought one of these:

 

Memfast

 

A little expensive but I've used it for small and large rivnuts into steel, aluminum and GRP and it's really very good.