CK-SL5-35M
Large Gas-Thru DINSE Connector, .508" (12.9mm) Diameter Power Pin (also called 35mm Dinse or 50mm Dinse).
For 200 Amp Air-Cooled TIG Torches with One-Piece Power Cable Connection (5/8" x 18 Right Hand Male Thread) to Power Supplies with Large DINSE Connection with the gas flowing directly through the center of the power pin.
This is a Non-Standard Dinse Connector that is designed mostly for use with CK Worldwide's series of Contractor & TrimLine TIG Torches.