Metric hose fittings are designed to fit with hoses and tubes that use metric dimensions, which are commonly used in European and Asian markets.

And they have either parallel or tapered threads. Metric parallel threads utilize a variety of methods for sealing connections, such as bite-type, compression. As with other fittings, a parallel thread in a port application usually seals at the top of the thread with an O-ring or other seal.

it is available in both male and female connection types, and a size range from 6mm to 42mm. The working pressure can go up to 400 bar and the temperature range is -40°C to +120°C. The standard for this metric hose fitting is DIN 2353, which is a widely used standard for hydraulic systems.