Exhaust Nut and Bolt Kit From 1984 Onwards for Harley Davidson

5/16-18 to 5/16-24 X 1-11/16" long.
Galvanized bolts with chrome plated nuts.
Fix the exhaust to the cylinder heads.
Note: The exhaust studs used on the M8 engine (OEM 10900015) are a slightly different design, with a small hex outer end sticking out to make initial installation of the studs easier, but these early Evo/Twin Cam style studs will still fit.
OEM Reference 16715-83 (bolts), 7593 (nuts)

Fits: Big Twin models > 1984-24; XL Sportster 1986-22; XR1200 1987-10 Buell XB