Allen Key Sizes For Bolts

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

Allen key sizes for bolts.

Hex key screw head. Metric allen key table from gt engineering oldham. Size diam ete r hex key size 6605 n. The tool is usually formed of a single piece of hexagonal rod of hard steel with blunt ends that are meant to fit snugly into the screw s socket bent in an l shape with unequal arms the tool is usually held and twisted by the long arm creating a large torque at the.

These dimensions of allen keys can be used to check the accessibility of your bolts were space is limited. Screw diameter drive size. Push fit tube fittings. Allen key also known as hex key hexagon key socket key ln key sizes and its dimensions can be very handy while designing and selecting fasteners for your application.

A quick swipe with a q tip dipped in rubbing alcohol will pick up any dust that can collect in the corners of the hexagon. Print this page. In this video i demonstrate some of the techniques that we use regularly on site to remove rounded allen head bolts or hex key head bolts. Allen head bolts.

Allen keys are available in long short arm tee key type and also available. The smaller size of allen wrench can easily strip a hex bolt or be stripped down itself. Imperial to metric for allen keys. Before placing the hex key into the bolt make sure the head is clean of dirt and debris.

Drive sizes for us allen drive screws. Also available from the nut place. Metric allen key table. Gessner houston tx 77040 4015 ph.

As you ll notice there isn t always a perfect substitute. For instance metric size 9 mm doesn t have an imperial counterpart. On the left hand side we have our sae to metric conversion guide for hex keys that provides the best substitute sae allen wrench for each given metric size.