Streamlining engine service by allowing the motor to be turned over with the heads removed, these cylinder sleeve hold downs secure sleeves during maintenance procedures. This 4-pack of case-hardened, zinc-plated nuts is compatible with Harley-Davidson Big Twin, Twin Cam, and Sportster models using 3/8" (9.5 mm) studs. Each nut includes a 3/8"-16 UNC thread and a ¾" (19 mm) hexagon for handling, along with a protruding cylinder that catches the stud for a secure fit.

Streamlining engine service by allowing the motor to be turned over with the heads removed, these cylinder sleeve hold downs secure sleeves during maintenance procedures. This 4-pack of case-hardened, zinc-plated nuts is compatible with Harley-Davidson Big Twin, Twin Cam, and Sportster models using 3/8" (9.5 mm) studs. Each nut includes a 3/8"-16 UNC thread and a ¾" (19 mm) hexagon for handling, along with a protruding cylinder that catches the stud for a secure fit.