MCS-916776 - 5/16-18 to 5/16-24 X 1-11/16. Note: Exhaust studs as used in the M8 engine (OEM 10900015) are of a slightly different design; with a small protruding hex-shaped outer-end to aid initial stud-installation; but these early Evo/Twin Cam style studs will sti

Fitment:
84-23 B.T.; 86-22(NU)XL; 08-12(NU)XR1200; 87-10(NU)Buell XB models