These are 5mm clockwise flanged lock nuts for the Savage .21 by HPI.
Features: Black steel construction with blue nylon inserts that is threaded clockwise
Includes: 4 Flanged Lock Nuts
Diameter: 11.05mm (0.435)
Thickness: 7.25mm (0.285)
Note: These are the correct wheels nuts for the left wheels on the Savage. For the right side wheel nuts use silver in color opposed to black on the right.