Kastar 446 Cylinder Sleeve Hold Down Nuts for Harley-Davidson Motorcycles

The Kastar 446 Cylinder Sleeve Hold Downs are specialty nuts designed specifically for holding cylinder sleeves securely in place during motorcycle engine service procedures. These hold-downs allow the motor to be turned over with the heads removed, making engine work safer and more efficient.

Key Features:

• Set includes four nuts for 3/8 inch-16 UNC thread
• 3/4 inch hexagon design for easy handling with a small cylinder protruding down to catch the cylinder stud
• Case hardened and zinc plated for durability and corrosion resistance
• Compatible with all Harley-Davidson Big Twin, Twin Cam, Sportster and models with 3/8 inch studs

These professional-grade hold-down nuts are essential tools for motorcycle technicians and DIY mechanics working on Harley-Davidson engine rebuilds, cylinder sleeve replacement, or head gasket service. The case-hardened construction ensures long-lasting performance even under demanding workshop conditions.