"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 ...

We may receive a commission on purchases made from links. The Allen wrench, also known as a hex key, is a L-shaped hand tool with hexagonal (six-sided) ends. It all started with a Connecticut inventor ...

Hex wrenches, also known as Allen keys, are the tools you use to screw and unscrew fasteners that have a hexagonal recess (as opposed to a Phillips or flathead recess). Hex screws are commonly used on ...

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 ...

CONFAST Hex Head Concrete Screws, often called “blue screw” due to their blue coating that helps to resist rust, are designed to be used when the screw head can protrude above the surface of the item ...

At first glance the Allen wrench doesn’t seem to be much of a tool. It’s little more than a small, L-shaped piece of metal. But don’t be fooled by its humble appearance, the Allen wrench is an ...