Straight female stud fittings, gauge fittings, gauge standpipe fittings and gauge fittings with 24° taper / O-ring (DKO) in various sizes and designs in the Extra-Light, Light and Heavy Series series as per ISO 8434-1 / DIN 2353. All common threads available. Tube connectors and cutting ring fittings from the STAUFF Connect series made of steel with 24° internal taper. For hydraulics.