A jam nut is a low profile type of nut, typically half as tall as a standard nut. It is commonly used as a type of locknut, where it is "jammed" up against a standard nut to lock the two in place. It is also used in situations where a standard nut would not fit.

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Oct 23, 2017 · Jam nuts are nuts that are about half of the size of a regular nut. In practice, these nuts are both screwed onto the bolt and then they are tightened against each other. There are a couple of different reasons you might want to use jam nuts.

Mar 10, 2025 · What is a Jam Nut? A jam nut, also known as a thin nut, is a type of fastener that is about half the height of a standard finish nut. While the circumference and thread sizes are the same as a standard nut, its reduced height makes it suitable for applications where space is …

May 2, 2022 · Jam nuts are short, threaded nuts. Most of them are hexagonal — just like other nuts. The difference, of course, lies in their height. Jam nuts are about half as tall as ordinary nuts. With their shorter height, they essentially work like locknuts. They are known as “jam nuts” because they are designed to jam against another nut.

Heavy hex jam nuts have two common applications. A heavy hex jam nut can be threaded onto a bolt and run tight against the standard heavy hex nut which will lock the nut in place and prevent it from backing off. Heavy hex jam nuts are sometimes used for leveling purposes as well.

Sep 19, 2022 · A jam nut is a thinner-than-average nut tightened against a standard-height nut to lock the two nuts in place. Installed correctly, a jammed nuts resist loosening...

The jam nut provides a quick and easy way to secure a subject nut in place or to secure a load. In this article, you’ll learn about its function and alternatives. The width of a jam nut typically measures half as wide as a standard nut. It provides a locking mechanism by jamming against a standard nut and thus locking the two in place.

Apr 2, 2023 · A jam nut is a type of nut that is used to secure two bolts or screws together. Lock nuts are made from steel, while jam nuts are made from brass. Lock nuts have a higher level of torque than jam nuts.

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