CYLINDER HEAD BOLT SET FITS: AUDI 4000 B2 SALOON 1.6/1.8/1.8 GTE/1.8 CC QUATTRO /1.8 GTE QUATTRO. AUDI COUPE B2 81 85. I. Bolt Head-/nut Design. Thread Size. We will get back to you as soon as possible in 1-2 working hours and in 24 hours during the weekend.