If memory serves me correctly the QR adapter screws in by 5 or 6mm hex, the 20mm bolt thru adaptors have the same circlip style retainers but are offset due to the hub dimensions and are specific to the Bulb.
Thanks for the replies. I spoke to the person on Facebook but they are for the 6 bolt hubs not the five. I think it's a bit of a lost cause to be honest. I've got hold of a different hub and the hope is going on my daughters fire mountain.
This the 5 bolt youre referring to ? The 20mm adaptors(held in with a big spring clip, equal lengths on drive and non drive sides :? unlike the 6 bolt version with the disc side longer than the non disc side.