Nuts and exhaust bolts from 1984 for Harley Davidson

5/16-18 to 5/16-24 x 1-11/16 "long. 
Galvanized bolts with chrome nuts. 
Set the escape to the ass. 
Note: The exhaust bolts used in the M8 engine (OEM 10900015) have a slightly different design, with a small hexagonal exterior end that stands out to facilitate the initial installation of the bolts, but these EVO/Twin Cam style bolts They will still fit. 
OEM reference 16715-83 (bolts), 7593 (nuts)

Compatible with: Big Twin Models> 1984-24; XL Sportster 1986-22; XR1200 1987-10 BUELL XB