Review on DynaCable M6 16mm Industrial Strength 60-Pack: Cage Nuts, Screws, and Washers for Rack Mount Server Cabinet, Shelves, Routers - Zinc Plated, Rust-Free by Nick Narvasa

Good set of mounting screws. I like the plastic cover but the screws need to be a bit longer. 2 mm more would have made the screw length perfect. If you use a plastic washer, it will be a bit short, you have to press hard to get it to enter the nut. The cage nuts are also flimsy and easily fall off the rack if squeezed while attempting to insert a bolt. At this price it should also include a cage nut assembly/insertion tool.