A laminated nut having a plurality of conical spring discs for use with a bolt assembly. Each of the discs is formed with a hex shaped outer periphery and a non-round central bore. The discs are assembled on top of each other forming a laminated stack. A threaded tension sleeve is located in the central bore and has a non-round outer periphery shape corresponding to the shape of the central bore of the discs. The tension sleeve has a threaded inner peripheral wall with the threads sized to fit the bolt assembly. The tension sleeve includes an upper flange to engage and hold the upper portion of the laminated stack and a lower flange to support the laminated stack. Application of a torqueing force to the outer, hex shaped periphery of the discs forces them to deflect and contact the threaded tension sleeve applying force along the length of the bolt assembly in a uniform manner to reduce clearance between the bolt threads and the threads on the nut tension sleeve.