Locks And Keys
Often used to protect value and impart security. Locks and keys have existed since as early as 4,000 years ago in Egypt. It is also said that key was invented by Theodore of Samos in the 6th century BC.
Keys Locks Weak Locks

The tool used to open a non-combinational lock.Keys appear in various symbols and coats of arms, the most well-knownbeing that of the Vatican - derived from the story of Saint Peter, thefirst Pope, being given the Keys of Heaven.

Locks, And Keyways

Often used to protect value and impart security.Wooden locks and keys were in use as early as 4,000 years ago in Assyria.

Weak Locks, Fail To Secure Things Of Value

Items like a rope, string, wire, cable, chain, or plastic wrap may be used to mechanically join objects; but are not generally categorized as fasteners because they have additional common uses. Likewise, hinges and springs may join objects together, but are ordinarily not considered fasteners because their primary purpose is to allow articulation rather than rigid affixment.[from wikipedia]

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