Triple Prevailing-Torque Locknut

This all-metal locknut features three locking elements, which serve to deflect the threads in the top of the nut for optimal locking strength.

This economical locking flange nut can be specified with an optional six-deflection pattern, a regular or large flange, and a serrated or non-serrated design, in order to meet the requirements of a wide range of applications. The Flange Tri-LOC can be hot-galvanized finished and available in American Standard and Metric; large and regular flange.


Steel Grade 2-5-8, 2H/DH, Monel, brass, bronze, aluminum alloys, and stainless steel


UNC, UNF or 8UN Series, Class 2B, 3B, left-hand thread, and Metric


Plain, zinc, cadmium, hot-dipped galvanized, and other platings and coatings