Pinch bolt on Scenic II strut

At the last MOT the examiner commented on a noise from the o/s front strut when the steering was moved from side to side. As it was going to be dry this weekend I thought it would be a good idea to replace the strut top mount and bearing. And a fairly simple job became a major timewaster when the pinch bolt securing the shock absorber to the hub sheared after coming out about 10mm.

I should be able to remove it by drilling it out but I have been unable to find an online supplier to source...

Pinch bolt on Scenic II strut