FREE SHIPPING ON ORDERS $149+
**SOME RESTRICTIONS APPLY
FREE SHIPPING ON ORDERS $149+
**SOME RESTRICTIONS APPLY
Store Updates
The Bolt Motorcycle Hardware 22mm Locking Axle Nut & Washer (AXN22) is a high-quality replacement and upgrade for your motorcycle's rear axle. Whether you have lost your factory nut on the trail or are tired of dealing with outdated castle nuts and cotter pins, this Fuji-lock style nut provides a secure, modern solution.
Unlike standard nylon-insert lock nuts that can melt under heavy braking heat or degrade after multiple uses, this Fuji-lock nut utilizes a stamped metal friction ring. This metal-on-metal locking mechanism grips the axle threads tightly, ensuring the nut will not vibrate loose even under extreme off-road abuse. The kit includes the M22x1.5 thread pitch lock nut and a matching 32mm outer diameter washer, precision-machined to distribute the clamping load evenly across your axle blocks.
Fuji-Lock Security: Utilizes a mechanical metal-to-metal friction ring that won't melt or degrade like nylon inserts.
Cotter Pin Eliminator: The perfect upgrade for older motorcycles equipped with a drilled axle, castle nut, and cotter pin system.
Durable Finish: Plated to resist corrosion, rust, and withstand harsh off-road elements.
Precision Fit: Features a 22mm inside diameter with a 1.5 thread pitch (M22x1.5) and a 32mm outer diameter washer.
Toolbox Essential: An inexpensive, critical spare part to keep in your gear bag or track toolbox.
1x Bolt M22x1.5 Fuji-Lock Axle Nut
1x 32mm OD Axle Washer
Thread Size: M22 x 1.5.
Application: Universally replaces any M22x1.5 rear axle nut. Always verify your specific motorcycle's rear axle thread size before ordering, as axle diameters vary by manufacturer and model year.
Ditch the Cotter Pin: Older dirt bikes and some modern dual-sports still use a drilled axle, a castle nut, and a cotter pin. It is a hassle to align the slots and replace the pin every time you adjust your chain tension. Swapping to this Fuji-lock nut allows you to ditch the cotter pin entirely. The metal friction ring bites into the axle threads securely and will not back off under heavy vibration, making chain adjustments significantly faster.
Thread Prep & Torque: While the Fuji-lock provides excellent security, it is always good practice to keep your axle threads clean. A quick hit with a wire brush before threading on the new nut ensures the friction ring engages properly and doesn't bind on dried mud or chain lube. Always use a torque wrench to tighten your axle nut to the manufacturer's specified torque setting to avoid crushing your wheel bearings.

Part Number: AXN22
If you have any questions or need help finding what you need for your motorcycle or your next adventure please reach out:
EMAIL US AT tmbrmoto@tmbrmoto.com- OR CALL - 208-254-2044
Our shop is temporarily closed. Check back soon — we'll be back before the next ride.