Cage nuts contain a free floating square nut retained within a spring steel cage. The cage has two retaining legs on the same side of the nut, positioned 180° from each other, that hold the nut in place at panel edges or center panel locations.
These nuts are more economical and easier to install than other heavy duty nuts for blind side applications. The free floating nut will compensate for poorly aligned holes. The square cage design keeps the nut from rotating during tightening. Cage nuts are successfully used in heavy duty farm machinery, rail cares, home entertainment components and heating equipment among other applications.