• Nylon locking element will not gall or strip threads or remove plating like all metal locknuts can.
• Full locking effectiveness from -65° to 250°F.
• Provides a complete 360° locking circle around threads to prevent loosening under vibration and impact.
• Absorbs and dampens vibration to prevent loosening under severe vibration better than other locking designs.
• Locks at any position on the fastener and allows precise adjustment.
• Nylon collar seals the threads to protect locked threads against corrosion for easier removal.
• Silver zinc plated finish.

Identification:
Nylon Collar: Regular Pitch: Purple
                       Fine/Very Fine Pitch: White
                       M22 Diameter: White

Allowable Grade Markings:

A. 2 vertical bars framing the No. 10 on the bottom face OR 

B.  Manufacturers mark on the top at 12:00 o'clock and a (-) dash mark at 10:00 o'clock