Weld nut question

[Fastdruid]

I imagine this is going to be a "D'Oh" moment when answered but here goes.

I have some weldnuts I need to weld on, they look like these:


Which way up do they go?

[CorseChris]

'spikes' contacting the metal you are welding to...but those are for spot welding on aren't they?

[Fastdruid]

Hahahahahaha.

That'll be the issue when just buying "weld nuts"...

So I need different ones for mig/tig then?

[Artstu]

Why don't you just use an ordinary nut? and if you want 4-sided ones you can even get them as well.

[CorseChris]

Fastdruid said:

Hahahahahaha.

That'll be the issue when just buying "weld nuts"...

So I need different ones for mig/tig then?

I'm sure you could use them OK - I would assuming it's not something structural, but I'd want to grind off the spikes so the nut sits flush against the panel.

I've MIGed 'ordinary' nuts onto a plate. Have also tried spot-welding ordinary nuts to a plate - that's no good!

[Fastdruid]

Because most nuts are plated and if I had to buy some un-plated ones I might as well buy the proper ones (even if it turns out they weren't )

Moot point now anyway, I've already welded them

[CorseChris]

They don't look like they'll come loose!

[Fastdruid]

I'd rather they didn't! They're going to hold my pedal box on (along with another pair).

Bolts go in from the other side anyway so even if they *do* come loose wouldn't be critical.