The Radial Lock Fastener is highly vibration-resistant, reversible and reusable, and it can be reinstalled using a blind approach. It is standard socket-compatible, and it allows for an extremely accurate preload to be applied. This design features a simple 3-step solution:
1. A socket is attached, making the nut free-spinning
2. The preload is applied
3. The socket is removed with the nut now locked
The aerospace standard (NASM 1312-7) for a vibration resistant self-locking nut is that it must survive 30,000 cycles of vibration without loosening. The Radial Lock Fastener survived up to 10X this requirement. Enduralock also demonstrated that the fastener could be repeatedly removed and reused. Following this testing, the same fasteners were subjected to tensile testing, in which they satisfied the requirements for aerospace fasteners.
