This kit is a game-changer for those working in industrial and scientific settings .As a result of my tests, I determined that these screw locking flange nuts are incredibly durable and can withstand heavy loads without loosening. The nylon insert lock feature ensures a secure fit, and the kit includes a variety of sizes to fit different applications. However, the only downside is that the kit may be a bit pricey for those on a budget. Overall I highly recommend this kit for heavy-duty screw applications..