Have recently bought a pump from an Italian Manufacturer (no, we don't make any like this at the price in the UK any more!).
It has 4 x tapped holes for M15 fasteners so need M15 x 30 Set screw / hex bolt / socket heads.
None of the usual suppliers have ever heard of this size.
We only need 4 for this contract but would expect to buy several more for future.
Can anyone help please!