A jam nut is a low profile nut, half as tall as a standard nut. Used as a type of locknut where it is jammed up against a standard lock nut to lock the two in place. Also used where a standard nut would not fit.
- Can also be used to secure an item on a fastener without applying force to that object
- Callout size is the inner diameter
- Also known as a hex thin nut
- Stainless steel material