SS QC SOCKET W/LOCKING COLLAR 3/8 MPT

Description Stainless 3/8" Locking QC Couplers were manufactured with safety and speed in mind. These specialized couplers have a small pin installed below the collar that inhibits the collar from disengaging unless you intended on removing an accessory. Stainless locking couplers are excellent for OSHA regulated facilities and food production where chemicals and hot water are traditionally used to clean. Note in the image, the collar can be spun and offset from the pin so that disconnecting an accessory intentionally is the only way it will disengage.  As always, when purchasing plugs and couplers the Male model has exposed threads while the Female version has threads on the interior of the fitting. See image for reference. All Stainless fittings are National Pipe Thread (NPT) which means they have a tapered Male or Female thread (depending upon the model). NPT is mainly used in the Western Hemisphere and was developed on the concept of interference by the third thread. When installin