Riser block installation question..., drilled holes in the spoiler? Options

[AMCMoe]

Ok it seems I'm the only one having this problem...

Where the risers bolt onto the spoiler, does anyone already have the holes predrilled and have the metal threading in there? My spoiler only has the holes where it bolted to the hatch, not where the riser blocks bolt onto. So I drilled some holes in the correct place on the spoiler but I don't have a clue what to put in the hole to retain the bolt. I took some pictures, they're bad quality because its dark and I only had a camera phone.





If anyone can think of any suggestions besides going to a body shop it would be appreciated.

[AMCMoe]

Finally finished. Worked on them for 3 hours tonight and got it on. I used the toggle bolts and put silicone on the threading. Seems to be on there pretty tight. Can't take any pictures this late though, its almost 11pm and has been dark for a while so I'll post a picture tomorrow.

95ST, If I ever take them out, I plan to let them drop into the spoiler and use a hot glue gun to drop a bunch of hot glue over it and let to dry to the spoiler, that way it doesn't rattle around.