Fitting a dog guard ??

Planning on fitting a dog guard to my P38, on the instructions from Britpart there is a tool which i don't have & nor do i know what it's called for inserting the screw in caps to the lining.

Anybody know what this tool is called & where i would get one from.

Cheers

Are they Rivnuts by any chance? If so look on Egay.

Like a pop rivet but i the middle it leaves a threaded bit.

ok guys i have taken pics of the instructions albeit not very good but here goes.

I have circled what i am needing in red, not sure on what this tool is called it has something to do with the riv nuts that gets inserted to the headlining.

It's for fitting the Rivnuts. As i said look on Egay, just type in Rivnut. I would try and borrow one if i were you. All you need is a bolt to screw into Rivnut a washer and nut. Put nut on bolt then washer, bit of grease then Rivnut, push in hole hold bolt tighten nut. When tight unscrew bolt from Rivnut. Job done.