This fitting is M14x1.5 and is a 45deg, although a straight can be substituted.
This is what I offer as a repair hose for the return to tank...........
Of course you must use a proper Oetiker or Norma clamp with this. I also have one for the feed from pump to tunnel if needed.
For info, please email me. NO PMs, NO PMs, NO PMs.
Cannot track messages or send photos w PMs.
Len at Autosportengineering dot com