Ginge
Ive checked the ones i have in the garage and Audi front and back were H&R Trak+ 112/5 pcd and 57.1mm bore Part No 2055571B, they fitted all my Audi's
For my ROC it was same Part No for fronts but because rear hub mount was deeper it still same spec as above but with slightly more machined out chamfer to fit so I'm not sure if Golf will be the same but its part No 2055571A
Bolts measure 40mm of thread to seat of head taper (seating)
As Rhyso says too I got original sets (2) from Damien at DPM performance and the rear set for the Roc from Demon Tweaks
Both 2055571A & 2055571B are Audi/VW fit
Hope that helps