I believe that they will deal with the public, I bought a spare part for a digital micrometer some time back. You will have to register, even Screwfix does that if you order online. I wouldn't be surprised if the prices were less VAT and postage would be added. On page 10, there is a basic mechanical 150mm vernier with inch and metric scales at a price less than 24 euros.
If anyone fancies a good digital 150mm caliper which has imperial and metric, I can recommend the Tesa Twin Cal, I paid £90 for mine, an 00530321 which is as nice to use as my old Mitutoyo.
Edited By old mart on 20/04/2021 20:16:14