Whether this long-term confirmed, for example under the influence of moisture and / or sand, you will see.
Since the complete solution of the screw with an associated shoulder belt is relatively high-priced 40 can contact the screw and a suitable 25mm wide belts a nice compromise build yourself.
Since the original strap has a damping, but this is only suitable for light to medium cameras. The Fuji X-E1 with Standard Zoom is light enough so it does not cut even after long periods.
One star deduction for the rather high price, but otherwise well-made and imaginary construct!