Jack nuts are engineered to connect materials that are thin, delicate, or prone to breaking. When installed, the jack nut's expandable section creates a bulge behind the material's surface, functioning as an anchor point.

Jack nuts feature two components - a cylindrical body and an expandable section.

The jack nut's structure is cylindrical in shape, with openings at both ends. Its interior threading allows for secure attachment of screws or bolts.

When installation force is applied to the jack nut, its expandable portion widens to create a secure grip.