There are various kinds of hydraulic hose fittings available in the market, and each one of them is very different from another fitting. The difference between them is simply because there is a lot of variation in their size and in their structure as well.  

The basic kind of hose fittings include the threaded hose fitting, the metal angle hose fitting, and the O ring one. They are the most common kinds of bosch hydraulic hose fittings, these fittings are used all across the globe as well.

However, identifying the most suitable hydraulic hose fitting may not be as easy as it sounds. The hydraulic system uses various kinds of hose fittings and metric adapters, which is why it is very important to know the right type of hydraulic hose fittings based on your system. 

The first step towards finding the correct kind of fitting is by figuring out whether the fitting is temporary or permanent. A temporary fitting is not difficult to identify however, permanent fitting is very popular, and is used a lot so, it is a little difficult to identify it as compared to temporary fitting.

After that, one has to figure out the fitting ends and what ports and connectors are in this particular fitting. At last, we have to figure out which kind of hydraulic hose fitting are we using. As discussed above, we have to figure out if we are using an O ring, metal angle, or threaded hose fitting.