This 50-pack of M6 cage nuts is convenient to have on hand for installing rack-mountable equipment, such as your server, network or audio/video equipment. They are also suitable for new server rack and cabinet setups - perfect for those times when you drop or misplace a nut or two. The bulk package ensures that you have enough cage nuts available for all of your installations, when you need them. The server rack cage nuts come in an all-black finish for a seamless look.