Table 1 below presents a summary of the typical metric sizes of Allen™ keys that are available, and Table 2 shows the equivalent sizes for SAE Allen™ keys. These dimensions of allen keys can be used to check the accessibility of your bolts were space is limited.

Hex Keys | Allen Key Sets | Screwfix

Allen™ wrenches are available as individual keys of a given size but are also sold in sets that contain a range of standard sizes.

Generally, these types of wrenches are not recommended for use in high torque applications as the engagement with the fastener when using the ball end is reduced. Material options – Alloy steel is a common material used for Allen™ keys, but stainless steel is also available as a material choice.

Hex Keys | Hex Key Set | L Shape Hex Keys | RS - RS Components Hex Keys | Hex Key Set | L Shape Hex Keys | RS - RS Components

To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Duologi is the trading name of Specialist Lending Ltd, which is authorised and regulated by the Financial Conduct Authority (register number 774712). Note that the values shown in the tables below are representative of the available sizes but the suppliers and manufacturers of Allen™ keys may offer products that differ in some way from the values shown in these tables. This feature helps prevent the wrench from accidentally falling into a work area and causing injuries or equipment damage. Insulated key designs – Some styles of Allen™ key may have the handle and wrench shaft coated with a non-conductive coating to provide protection for users that may be utilizing the tool in operating conditions that could expose them to electrical currents from conductive wires or components.Refer the following table for metric allen key sizes and dimensions for corresponding socket head cap screw based on ISO 4762/DIN 912 standards. Hex keys, also known as allen keys, are used to tighten or loosen bolts and screws that have a hexagonal head. The important parameter that establishes the size of the Allen™ wrench or Allen™ key is the width across flats, which is the distance between any two of the faces of the tool that are parallel to each other. This screwdriver set has been been manufactured from hardened chrome vanadium steel, which has been correctly tempered for greater strength and durability. In addition, there are different finish options available, the most common being black oxide but chrome options exist as well.

16mm Allen Key | ZORO 16mm Allen Key | ZORO

Some ball-end Allen™ keys feature a ball at one end of the driver and a shorter driver that extends off the handle with a standard hex head. Tether-ready designs – These Allen™ wrenches include an opening on the handle which can be used to attach a tether that can secure the wrench to the user or to a fixed object such as a scaffold. Missed payments may affect your ability to use Clearpay in the future and your details may be passed onto a debt collection agency working on Clearpay's behalf. These comfortable T-Handle HEX bits make it easy to apply more torque and are much preferred by professionals and regular users.For information on other topics, consult our additional guides or visit the Thomas Supplier Discovery Platform where you can locate potential sources of supply for over 70,000 different product and service categories, including suppliers of Allen™ wrenches and other hex key wrenches. Besides the common types described earlier, Allen™ wrenches are available with other features that improve safety or increase convenience for using the tool.

Allen, Hex, Torx and Star Key Sets - Machine Mart Allen, Hex, Torx and Star Key Sets - Machine Mart

The Beryllium Copper material will not create sparks if the tool accidentally slips and strikes another metal surface.Clearance – Allen™ screws feature a hollow hexagonal socket into which the Allen™ wrench is inserted rather than using an exposed head such as those found on a hex head bolt. This is valuable for applications where the working clearances are such that a head-on use of the tool is not possible or where the direct engagement would not leave sufficient room to rotate the tool to apply torque. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. The use of the ball end design on the driver as opposed to the standard straight profile provides for the ability to tighten or loosen fasteners when the tool needs to be held at an angle with respect to the fastener (i.