FE , FEO , FE , U , UL miniature nuts provide strong threads in tight spaces and visual indication during installation. Their serrated foot prevents rotation and torque resistance far exceeds self-locking. When pressed, the sheet material fills the internal recess, creating resistance to push-out.

FE / FEO / UL nuts with elliptical clip are self-locking.

FEX / FEX / U Non-Locking Nuts These nuts can be installed in thinner sheets and closer to the edge of the sheet than standard push-in nuts.