Inside sill covers (73 Innocenti)

[Flyinace2000]

Restoration is nearly done (has been for months, but thats another story).

Body shop wants to know how to install the interior tread plates. 
http://www.7ent.com/products/tread-plate-set-aluminum-dot-pattern-14a7270.html

Here are some photos of the new interior (from Newton Commercials)
http://imgur.com/TCf4kjp
http://imgur.com/xIVOdEU

[John Gervais]

Around 14 years ago, I used double faced tape to attach my stainless tread plates and they're still secure.

[Flyinace2000]

Around 14 years ago, I used double faced tape to attach my stainless tread plates and they're still secure.

The parts i bought mount on the inside, assuming covering the part of the carpet that does not have the piping.

[MPlayle]

The picture in the link to 7Ent seems to show about 4 screw holes per cover.  From what you describe of where they are supposed to mount, I would assume you will need to drill small holes in the inner sill and screw mount them through the side carpet.

[tmsmini]

Not the best picture

[John Gervais]

Interesting -

[94touring]

Actually I've had those on a car before.