A good hinge for server racks can do much for the safety and safekeeping of servers, not just by being durable but also long lasting. You don't want to end up with hinges that break down or is easily cut and removed from the server racks after all. Just in general it's always a good idea to get the best equipment and products you can to keep the servers safe from harm and people that either might want to steal or destroy them. Few can afford their servers going down for a prolonged period of time or lose the valuable information they contain, so making sure to get some basic safety measures like a hinge for server racks are of great importance. Cameras and alarms wont help much if someone can immediately snatch things and get away after all.
There's many things that you should of course get for the sake of safety and safekeeping servers, outside of hinge for server racks. The racks themselves needs to be strong and sturdy to hold the servers up, and you need locks and ensure that the elements of the environment you keep everything in cannot damage your equipment. It's never worth being cheap with what you get for your servers, downtime often come with a great cost and dissatisfaction from customers and users, which can often result in a loss of revenue and growth. So don't skimp out on the base necessities even if it may be tempting to do.