The NYLOK® BLUETM PATCH self-locking element is permanently spray bonded onto the threads of a fastener. When mating threads are engaged, the tough, resilient blue nylon patch element is compressed and a counterforce is created to establish a much stronger metal-to-metal contact and positive resistance to vibration and loosening. It exceeds industry standards such as MIL, NAS, automobile specifications, and it has been widely used in electronic companies such as LENOVO 、 HP 、 IBM 、 APPLE 、 DELL 、 ACER 、 ASUS 、 TOSHIBA .
