NO STANDARD LOCKNUTS ALLOWED! 
NO DOUBLE LOCKNUTS ALLOWED!
NO SEALING LOCKNUTS ALLOWED!
 

USE:

• BONDING TYPE  LOCKNUTS AND GROUNDING BUSHINGS.
• THREADED COUPLINGS BOSSES OR ENCLOSURES
• THREADLESS COUPLINGS AND CONNECTORS FOR METAL RACEWAYS AND METAL-CLAD CABLE

Bonding must be maintained from the source of supply to the load.