These Liquid tight EMI-proof grounded strain relief fittings made of Nickel Plated Brass are the perfect answer to stringent requirements for reliable grounding and protection from electromagnetic interference (EMI). Two styles are available: STANDARD and FEED-THROUGH. The STANDARD version has an integral O-Ring, which presses the braiding against the inside wall of the body but can only be used with Braided Shield - the FEED-THROUGH works well with Braided or Foil Shield and provides reliable grounding by means of Nickel Plated spring fingers. Locking Nuts with cutting edges are available (ordered separately). They penetrate the protective coating of the enclosure for a metal-to-metal connection.