The various types of bolts for exhaust programs involve structural automotive bolts and screws, fastening automotive bolts and screws, specialty automotive bolts and screws, hex head automotive bolts and screws, flange automotive bolts and screws, stainless-steel exhaust bolts, variable pitch exhaust bolts, exhaust stud bolts, and exhaust header bolts. Stainless-steel: https://auto-body-and-repair-near93568.blogs100.com/27717622/types-of-bolts-for-exhaust-fundamentals-explained