Padlock

A padlock is a simple type of detachable lock, with a hinged or sliding shackle

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designed to pass through a ring or staple on a door, chest, etc.

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Lock: The word lock came from Anglo-Saxon loca = "a secure enclosure". Currently lock has several meanings:...

Hinge: A hinge is a mechanical device that connects two solid objects, allowing rotation between them. Hinges may be made of flexible material or of moving components. In biology, many joints function as hinges....

Shackle: A shackle is a U-shaped piece of metal secured with a pin or bolt across the opening, or a hinged metal loop secured with a quick-release locking pin mechanism. They are very commonly used in outdoor activities such as sailing....