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.
A tubular lock is a variation of a pin tumbler lock, where the pins are arranged in a circle facing the front of the lock and are operated by a tubular key. It was once referred to as an ACE lock, with ACE being a trademark of the Chicago Lock Company, but the generic term tubular lock is far more common these days.