I just bought a new muffler for 02 scram 500 and need to clean threads on the bolt that is in the side. Does anyone no the pitch and diameter of this bolt i hav to use the old one new mufflr didnt hav the bolt.

 

7512666 BOLT 12mmX16 mm. Can't remember the bolt head size,but think it's around 19mm (3/4") This is the muffler clean out bolt
7515316 BOLT 1/4-20 1 3/64 This the muffler mounting bolt. Again can't remember the bolt head size.