Review on Lancher 60-Pack M6 x 16mm Screws and Cage Nuts: Ideal Fastening Solution for Server Shelf Cabinets and Rack Mounts by Jason Melvin

This was exactly what I needed. I have 3 Cisco routers which I wanted M6 and not M5 due to their depth. They were a little longer than others I've had which made getting started a lot easier. Especially considering Cisco's "ears" are pretty thick. Total length is about 3/4 inch. Approximately .10 is the screw head and leaves approximately .65 threads. See photo. I also had a little problem with my order that Fencher Co did more and way more than they needed to do. Life isn't perfect. The real test of character is what a person does when things don't go to plan. Fencher Co will definitely get my future business,