Cooker/hob flex

There are a few options

.You choose exactly the crimp size to fit the screw diameter and they should fit.

.You cut the crimp edges slightly to fit

.You look at uninsulated ring terminals and choose the correct size.

.You look at the wire size you are using and select one with the smallest cross-section for the appliance diversity rating, not the "10mm will fit" option. Most appliances are perfectly OK with a 6mm or 4mm connecting cable, taking a view on the diversity of its loads.


Regards

David

Or if you are any good with rope craft, and date from an era when pipe smoke was common..  Split the strands into three groups, the first two equal, and containing most of the strands for example with a 7 strand cable, 3 each side and one left over , with 19 strand, two eights and a 3.. Form the two equal bunches into two tight twists and then form into a fork to go under the head of the bolt. Use the left over strand or few strands as a 'frap' of a few turns around the split of the fork, to prevent the fork opening. If there is room in the enclosure to do so safely,  a similar frap at the distal ends will hold the wire into an eye, or even just twisting the ends together.

I'm inclined to agree with the above - the makers tend to assume a flex size much closer to the limit than a lot of electricians are happy with.