Mk2 P/S bracket for fluid lines

Hi all

Looking for some help regarding the bracket that attaches to the chassis leg which holds power steering fluid lines before it gets to the fluid bottle.

I have the bracket:



My mk2 didnt have P/S before. I went to fit this bracket in the holes on the chassis leg and after removing the grommets I was greeted with this:



Two hexagonal holes with no threaded inserts to screw the bolts into. Ive checked diagrams and I can seem to see whats meant to be on the chassis leg side for the mounting of this bracket.

Can someone let me know what I am missing please?

Thank you in advance

 

Two rivnuts.
https://en.wikipedia.org/wiki/Rivet_nut

 

Yes I was thinking to use a threaded insert like above but wanted to see what the oem fitting is first and if I can get hold of it

 

Ah okay so they had rivnuts from factory. I thought there would have been some kind of captive nut in there before the chassis leg was made.

Thanks John!