Self-management is a characteristic of many forms of socialism, with proposals for self-management having appeared many times throughout the history of the socialist movement, advocated variously by market socialists, communists, and anarchists. There are many variations of self-management.
The Loctite 0.2 fl. oz. Blue 242 Thread Locker is designed to lock and seal threaded fasteners to prevent loosening from vibration. It prevents leaks and the rusting of threads. It eliminates the need to stock expensive lock nuts and lock washers. California residents: see Proposition 65 information.
The Rc thread is  a designation for BSPT (British Standard Pipe Taper). For example, Rc 1/4. refers to the threaded end of a fitting or pipe which is 1/4 inch trade size (not actually 0.25 inches), and having British Standard Tapered Pipe threads.