Bangor University is certified by the US Department of Education to provide Federal Direct Loans and private student loans via Sallie Mae or Earnest to undergraduate and graduate students who are studying at least half time. A detailed description and flowchart for how to apply for US loans to Bangor University can be found here (updated to 2018 version)
Guidance for how much a student can borrow can be found here.
The first step in the Federal Direct Loan process is to complete your Federal Student Aid (FAFSA) application https://fafsa.ed.gov/ and advise us that you have done so student-records@bangor.ac.uk