Im planning on fixing my bodywork with rivnuts so they can be removed if needed .

What size rivnuts should i use? and what spacing?

Thanks
Mikkel

I woudl use as small as possible so you could keep the size of hole you are drilling into the chassis at a minimum.

Whilst I appreciate and agree with what speedyxjs says, I would go for M5 reduced head rivnuts on the basis that, in my experience, they are less likely to spin round than M4 and allow a bigger washer to spread the load and make a more secure fixing.

Prifast do some very nice galvanized reduced head rivnuts. These need an M7 pilot hole.

I use M6 thin head ones from RS

Ok cheers guys