Safety wire or lockwire is a type of lock mechanism that prevents fasteners from loosening due to vibration and other forces.  The presence of safety wiring also serves to indicate that the fasteners have been properly tightened.

Inconels are a class of nickel-chrome-based super alloys characterized by high corrosion resistance, oxidation resistance, strength at high temperatures, and creep resistance. Inconel is able to withstand elevated temperatures and extremely corrosive environments.