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Encyclopedia of Fasteners & Hardware Items
 
Courtesy of FastenerMart.com
 
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Hex & Torx Keys

Also Called: Hexagon Key, Hex Wrench, Allen Key, Allen Wrench

"L" shaped hex keys, available in short and long arm versions, are used with Hex Socket, Button and Flat Head Cap Screws and Hex Set Screws. Ball End Hex Keys have ball and standard arms: the long ball arm can be used at angles up to 30 degrees, but when maximum torque is required, use the non-ball short arm. T-Handle Hex keys are preferred when maximum driving power is needed or when "L" hex keys can't be used because of obstructions. Hex Bits are used with power drivers. Torx keys are similar to hex keys, but grooves in the key mate with teeth in the screw head to prevent slipping. Hex keys and Torx keys are not interchangeable. Available in inch and metric sizes.

Hex Wrenches

Also Called: Hex Key, Hexagon Wrench, Allen Wrench

Because of their size, these hex keys are sometimes called Hex Wrenches and are used with Hex Socket, Button and Flat Head Cap Screws. The "T" handle design delivers maximum driving power to the screw. Also great when you can't use an "L" shaped hex key because of obstructions. Available in inch and metric sizes.

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