Cooper Wiring Devices CWL620C Hart-Lock locking connector. Industrial Specification Grade, NEMA L6-20R, 2-pole, 3-wire, grounding, rated 20A 250V. Cord capacity: 0.38"-1.00". Each is individually packaged; packaging may differ from photo. Features include:
High-strength nylon construction stands up to severe job site abuse
All-brass terminal screws and clamps for low resistance conductor terminations
Serrated terminal plates and contoured terminal clamps "bite" on the conductors for positive termination
Heavy-duty safety grip external cord grip with fast-driving screws provides positive cord gripping and limits strain on conductors
Dust and moisture cord seal limits entry of contaminants into terminal compartment
Inserts included for three separate cord grip ranges
Back wire terminal clamps for easy secure wiring
Grooved housing for easy gripping and twisting
Clear terminal chambers allow visual inspection of terminals
