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.

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.

Jun 16, 2022 · Jam nuts are hexagonal fasteners with interior threading that are designed to press or jam against another nut. Like hex nuts, they feature a hexagonal shape. Jam nuts have six sides of equal length, and they have the same interior threading as their hex nut counterparts.

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 …

Jam Nuts are typically half as tall as a standard nut and commonly used as a type of locknut, where it is “jammed” up against a standard nut to lock the two in place. Hex Jam Nuts. Nylon Insert Hex Jam Nuts. Quality Fasteners, Delivered!® ...

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Hex jam nuts are thinner than a standard hex nut but have the same dimension across the flats and corners. Hex jam nuts have two common applications. A jam nut can be threaded onto a bolt and run tight against the standard nut which will lock the …

Jam Nuts are heavy profile hexagon head bolts with full or partial thread configurations. Boltport is a manufacturer of Jam Nuts in metric and imperial sizes with coarse, fine, extra fine, and custom threads to various dimensional standards and material specifications.