Titanium Exhaust Stud - 6mm - 1.0 thread - 38mm total length 6mm Titanium Exhaust Stud. Made from Grade 5 Titanium. Titanium is lighter, stronger, and will not corrode like your stock steel studs. This stud weighs 4 grams or 0.15 ounce! Titanium Exhaust Stud - 6mm - 1.0 thread - 38mm total length Precision CNC Machined in the USA Easy to replace! Upgrade you machine now!