Washer / bolt trick to fix rear camber (94-97)! I Need details

Ok, I have heard from a few people now that the rear camber can be adjusted on the 95 Accords using the longer bolts and adding washers trick. I did this on my 98 Civic and just wondering what bolts you use and which ones are replaced. It was two bolts with my civic that connected the control arm to the chasis of the vehicle. Just like in the picture:

http://images.cardomain.com/installs/221000-221999/221862_1_full.jpg

I need to know what bolts (exact sizes) and where the bolts are located on the car.

Thanks a lot!

PS <> The coilovers are in and riding good!