Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: Do these require mounting hardware, or do you screw using holes on the wall-facing part of the slide (I see others being bought with brackets)?
Document: The first time I bought these I was building a desk for my office, using them for slide-out keyboard shelves and drawers. I was first impressed with their weight, which is substantial, giving you confidence that they will not bend or break even with a heavily laden drawer. They were fairly simple to install, requiring only a little trial-and-error before I could practically install them in my sleep. Finally, they slide smoothly and consistently--I have never had one stick.
I have an older (few years old) Sharper Image glass desk I bought at Office Depot. The keyboard tray track is a joke and broke on me once and I was able to get SI to send me a replacement track of the same design. It was breaking again after a couple more years and this desk is now discontinued. I looked on Amazon and was surprised to see something like this and it works great with a slight modification by drilling holes in the wood of the keyboard shelf.
Not a heavy duty drawer slide, but it seems well made and glides smoothly. No mounting instructions were included. Great for drawers that will not carry a lot of weight
My husband built me a craft cabinet with slide out shelves using these slides, they are top quality! There is a locking mechanism that holds them in place and they glide smoothly open.
So off to Amazon I went to find some new and better slides!These slides are much better than other with their vast array of applications that they have. I say this because you are not limited by width like some other keyboard slides, which would be an issue for me. Also, these are not top mounting like some other slides, and instead mount to the slide like one would expect.As for quality, these are rock solid. They are currently holding my keyboard which is a hefty 16 pounds!
I bought these for a drawer in a compound miter saw stand I made. They slide smoothly on ball bearings, are easy to install, and are very well made. At the price, they cannot be beat!
I am using drawers to store 60 to 70 lbs of vinyl records (appx 75 - 80 per drawer) and they handle the load very well. Very quiet and smooth sliding. Excellent product.
As a 34 year retired toolmaker, I am pleased to see the quality of manufacture. The slides are first rate, from first rate tooling and assembly, to first rate packing and shipping. These guys are my only choice from now on (along with Amazon)
These slides are well built and work effortlessly. As some reviewers have already commented, they are coated with a tacky grease that you have to be careful not to get on your project. If it does get on the unfinished wood, you'll have problems getting an even stain match and your finish probably will not adhere where the grease is. Another area that I see could be improved is the release catch to release the drawer from the cabinet.
These drawer slides are very sturdy (all-metal construction) and I have little doubt that they would hold 100 pounds. They slide very nicely with a satisfying "clunk" (ridge of resistance right before it's closed) as it's being closed all the way. Would definitely purchase these again!
Answer: no