What bolts nato

what bolts do i need to hold nato electrics to the rear xmember? i guess they are some sort of self tapper as the holes are blind?

its like this

Normal bolts and rivnuts

they must be small, do i have to drill out the holes on the xmember?

Yes, including a hole for the wire to go through. This isn't a wah is it? I'd have thought it was common sense

its common sense yes i could just find some bolts and ram them in but i wanted to do it right

You can get a tap and tap the x member, its thick enough for something like that, I drilled and tapped mine so I could fit a chequer plate cover but still be able to quickly remove n clean behind now n again

M6 12.9 socket caps in BZP n copperslip should avoid any 'rusting in' issues

Cheers Steve