Forgive my ignorance and lack of experience but can someone give me the low down on all the lingo when it comes to bolts? 5br, dbb, 3bb, etc… I think i know a little, but would love it explained properly!… Will do a course soon when i can get somewhere that runs them, but just want a little info so I can get my head around it and be prepared. PS removable bolt plates are for carrots yeah? and fixed hangers for bolts with nuts on them? Ive heard 10mm hole is standard but what angle plate is more commonly used? Or should I just experiment with different types ay… Cheers heaps