What is Allen Key? and Uses

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Allen key

What is Allen Key? and Uses

An Allen key, also known as an Allen wrench or hex key, is a simple hand tool used to tighten or loosen screws and bolts that have a hexagonal socket. It is named after the Allen Manufacturing Company, which first introduced this type of tool in the early 1900s.

Allen keys are typically L-shaped, with a hexagonal bar on one end and a handle on the other. The hexagonal bar fits into the corresponding socket on the screw or bolt head, providing leverage to tighten or loosen it. The handle allows for a firm grip and easier turning.

These keys come in various sizes, with the most common being metric and imperial measurements. The size is determined by the distance between opposite flat sides of the hexagonal bar, usually measured in millimeters (mm) or inches.

Allen keys are widely used in many applications, including furniture assembly, bicycle maintenance, automotive repairs, electronics, and various mechanical tasks. They are particularly useful when working with socket head cap screws and other fasteners with hexagonal recesses.

     One of the most useful handtools in our garage and machine shop or home toolkit is the allen key set. This is 'L' shaped. It is light,small and easy to carry around.

A allen key or hex key, is simple tool used to drive bolts and screws with hexagonal sockets in their heads.

 Another name of allen key is hex key. Allen wrench has six sides that provide better grip for turning bolt head or nut.

SET OF ALLEN KEYS

It can be used with nuts that have role in their head that hexagonal shaped.

In mechanical industry or machine workshop allen key mostly used to tight or loose nut.

 Allen key are various sizes the standard sizes are 0.7,0.9,1,1.25,1.3 and 1.5mm then 2 to 6 in 0.5 increment 7 to 22 in 1 mm increments and 24,25,27,30,32,36,

42,46mm.

In many cases,the other side of the key will have flat head or a Phillips type shape so we can use it many types of screw.

The inch based set of wrenches is considered standard in the industry.

A well used allen key is deemed useful because it works well.

Where is Allen key used?

Allen keys, or Allen wrenches, are used in a wide range of applications. Here are some common areas where Allen keys are frequently used:

Furniture assembly: Many furniture pieces, such as shelves, cabinets, and tables, are often secured with screws or bolts that have hexagonal socket heads. Allen keys are commonly used to tighten or loosen these fasteners during assembly or disassembly.

Bicycle maintenance: Bicycles often use Allen key fasteners for various components, including the handlebars, seat post, pedals, brake calipers, and derailleurs. Allen keys are essential tools for adjusting and maintaining these parts.

Automotive repairs: Allen keys are utilized in automotive applications for tasks like removing or installing engine covers, adjusting brake calipers, replacing spark plugs, and other mechanical adjustments.

Electronics: Allen keys are sometimes used in electronic devices for opening or securing cases, particularly in computer hardware, mobile phones, and gaming consoles.

Machinery and equipment: Many industrial machines and equipment use Allen key fasteners. These can include manufacturing machinery, power tools, appliances, and other mechanical devices.

DIY projects: Allen keys are useful in various do-it-yourself projects that involve assembling or disassembling items with hexagonal socket fasteners.

Plumbing and pipe fittings: Some plumbing fixtures and pipe fittings, such as faucets, showerheads, and valves, may require the use of Allen keys for installation or maintenance.

These are just a few examples of the many applications where Allen keys are commonly used. Their versatility and effectiveness in working with hexagonal socket fasteners make them indispensable tools in numerous industries and household tasks.

How to unscrew allen bolts, using an allen key?

To unscrew Allen bolts using an Allen key, follow these steps:

Select the correct size: Determine the size of the Allen key needed for the specific bolt you want to unscrew. Choose an Allen key that fits snugly into the hexagonal socket of the bolt to avoid slipping or stripping the socket.

Insert the Allen key: Insert the short end of the Allen key into the hexagonal socket of the bolt, ensuring a firm and secure fit.

Apply force: Using one hand to hold the Allen key in place, use your other hand to turn the longer end of the Allen key handle counterclockwise (lefty-loosey) to loosen the bolt. Apply steady pressure while turning, ensuring the Allen key remains engaged in the socket.

Check the bolt's rotation: As you turn the Allen key counterclockwise, observe the rotation of the bolt. If the bolt is tight or hasn't been loosened in a while, you may encounter some resistance initially. Continue turning until the bolt becomes loose.

Unscrew the bolt: Once the bolt is sufficiently loosened, you can remove it by continuing to turn the Allen key counterclockwise. If the bolt is too long or if you prefer to avoid dropping it, use your free hand to catch it as it comes loose.

Note: Some Allen bolts may have different mechanisms, such as a locking mechanism or thread-locking compound. In such cases, additional steps or precautions may be necessary. Additionally, if the bolt is stuck or excessively tight, applying some penetrating oil or using a longer Allen key for increased leverage can help facilitate loosening.

Remember to exercise caution, especially when dealing with tight or stubborn bolts, to avoid potential injuries or damage to the surrounding components.

So in this article we discussed about Allen key set information is useful for your knowledge hope you understand well.

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