In combination with tube fittings and single-edge and double-edge cutting rings, union nuts from the FI-M series enable leak-free connections. They are available in the Extra-Light, Light and Heavy Series as per ISO 8434-1 / DIN 2353 and are suitable for rated pressures up to 800 bar. Accessories and spare parts for tube connectors and cutting ring fittings from the STAUFF Connect series made of steel with 24° internal taper. For hydraulics.