DISC-LOCK Australasia’s Disc-Lock Locking Nut is based on the same successful principle as the Disc-Lock Washer but has a few important features that place it in a class of its own when compared to other locking nuts on the market.
The Disc-Lock Locking Nut is a vibration and shock proof, free spinning locking nut. It consists of two components, each with interlocking cams, which are joined together to form a one-piece assembly.
The top component of the Disc-Lock Locking Nut is a threaded hexagon nut with cams on the underside and a pilot that retains the washer. The bottom component is a hex flange washer with cams on the top and smooth bearing surface.
When the assembly is subjected to vibration and shock, the interlocking cams of the Disc-Lock Locking Nut attempt to rise against each other. As the cam rise angles are greater than the pitch angle of the threads, the assembly locks and maintains the clamp load of the bolted connection, thereby protecting joint integrity.
The Disc-Lock Locking Nut is manufactured from medium carbon steel and can be used with Grade 5 (Class 8.8), Grade 8 (Class 10.9) and even stronger bolts. They are available in M6, M8, M12 in coarse thread and M16 in coarse or fine thread.