Harley-Davidson requires the use of Loctite in the factory service manuals. Here's the top products in stick format to help keep your nuts and bolts where they belong.
Loctite 5 stick kit - Medium Strength Blue, High Strength Red, Thread Sealant White, High Heat Anti-Seize Copper, Standard Anti-Seize Silver
Loctite Disc Brake Quiet Stick
Loctite Hi-Tack Stick
*Notice Loctite Products cannot be shipped outside of the US