if its stock---- the head is 8mm and the stud size is 5mm-----the large one is 10mmX1.5 thread with 15mm head------------most aftermarket are 8-32 with a head of 11/32 or 8 mm--------the big one is usually 9/16 head with 3/8-16 thread..................RC
if its stock---- the head is 8mm and the stud size is 5mm-----the large one is 10mmX1.5 thread with 15mm head------------most aftermarket are 8-32 with a head of 11/32 or 8 mm--------the big one is usually 9/16 head with 3/8-16 thread..................RC