16-05-2024, 06:17 PM
Nearly all fixings on an A7 are BSW or BSF. It's worth seeking out a copy of the relevant thread tables (diameter, pitch, tapping hole size, etc) and sticking them on your garage wall then you'll be able to identify them with relative ease. You will of course come across BA threads, metric interlopers and 'unified' monstrosities introduced to your car by former owners. Plus there are one or two 'special' threads to watch out for, but all in good time.