Hi man, looks like you're in the same or similar predicament as I am?.
H&R provide their own brackets as the oem ones are definitely different and again not sure if they sell these separately
Alex says they cannot be purchased separately so that's a downer if it's true and he most likely knows better than us as he's a trader and specialist.
Thanks for your reply and hope you can get the same as I.
My captive nuts were already snapped off when I bought the set up off a member but for some reason!! Now one loosened itself off and bent the bracket!!! Got my mate at his garage to bang a nut on it but weirdly enough he lost the other captive nut so now there's two normal washer nuts holding the one side together!!!
don't know why people do that when I wanted the one nut fitted
still making a slight knocking noise and I don't want it to bent again F**