Tiroir glissière de tiroir

Being a novice fixing a drawer, it took me a bit to figure out how to separate this into 2 parts for install since there were no real instructions. I eventually figured out that you just had to forcefully yank them apart as their is no lever or catch for release like most drawer slides I've dealt with. After that, it was a simple install. I did have to search for flat small screws to install as they are not included with this slide. The only down side is that you have to pull so hard that it actually pulls the attached slide off the bottom of the drawer since there is no way to attach it tightly to thin wood bottoms. It seems sturdy enough, but we will be careful with this file drawer and never pull it fully out again...Not much left to reattach it to. I had to put shims under the track to give it something to grab for the 2nd install effort.

No happy, came with no mounting instructions, can’t seem to get any help with the product.