Yes, generally speaking, if you pass the master's thesis and meet the degree requirements of the school, you are eligible for a master's degree. In Britain, the award of master's degree is usually based on the performance of students in the whole course, including the evaluation of course scores and graduation thesis.

The general steps to obtain a master's degree include:

Complete the course requirements: ensure that all required courses of the master's course are completed and corresponding credits are obtained.

Pass the graduation thesis: Graduation thesis is an important part of master's degree evaluation. You need to ensure that your thesis meets the school's standards academically and in research, and has passed the evaluation process.

Meet the degree requirements of the school: the school will have a series of requirements for degree awarding, including necessary credits, course scores and other related requirements. Make sure you meet these requirements.

School evaluation and decision: the academic Committee of the school or the corresponding evaluation institution will review your academic performance, including the evaluation of your graduation thesis. If everything meets the requirements, the school will decide whether to grant you a master's degree.

Degree conferring: Once the school confirms that you meet the degree requirements, the degree conferring process will begin, and you will be awarded a master's degree and get the corresponding diploma.

Please note that the procedures and requirements of each school may be slightly different, so I suggest you refer to the specific regulations of your school to ensure that you fully understand the process of obtaining a master's degree. If in doubt, please consult the graduate office of the school or relevant academic support institutions.