Prevailing-Torque Triple Locknut

This all-metal locknut features three locking elements that deflect the threads into the top of the nut. TRI-LOC® locknuts can be ordered as coupling nuts, wing nuts, weld nuts, and track nuts, and with a six-deflection pattern.

For special applications, TRI-LOCs are offered in Xylan®/Teflon® and can be hot-dip galvanized. These locknuts are available in American Standard and Metric; hex-finished, jam, heavy, hi, coupling, flange, wing, weld, and track nuts.


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 dip galvanized, mechanically galvanized, Xylan®/Teflon® along with other platings and coatings