C-LOC

Collar Type Prevailing-Torque Locknut

The C-LOC Collar Type locknut employs an oval locking collar on top of the nut to create frictional thread interference during installation. These collar locknuts are available in American Standard and Metric; hex-finished, jam, heavy, and hi nuts.

For special applications, C-LOCs are available in special light or heavy torque versions, and specials can be manufactured to print.

Materials

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

Threads

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

Finishes

Plain, zinc, cadmium, mechanically galvanized, and other platings and coatings

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Diagram of C-LOC collar locknut showing a top and side view.