"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Hex wrenches, also known as Allen keys, are the tools you use to screw and unscrew fasteners that have a ...

Because of its small size, high torque strength, and recessed installation, the hex socket screw is a great alternative to regular bolts. The main tool used to tighten or loosen hex socket screws is ...

Hex keys are often taken for granted because they are used so frequently and for so many jobs on a modern bicycle. In fact, it’s sometimes difficult to find a bolt on a bicycle that doesn’t have a hex ...