What is the Fox NA2 Foot Nut Socket and which forks require it?

The Fox NA2 Foot Nut Socket is a dedicated 3/8" drive torque socket for the Fox NA2 air spring foot nut, designed to apply the precise 4.5 Nm reinstallation torque that open-end wrenches cannot reliably achieve. It is required when servicing forks such as the Fox 38 Factory with an NA2 air shaft, where the full air assembly must be removed to access the negative sealhead. The 24 mm outer hex fully captures the nut profile for a secure, repeatable fit.

How does the Fox NA2 Foot Nut Socket differ from a standard 12 mm socket?

The Fox NA2 Foot Nut Socket is not a universal 12 mm socket — it is model-specific, engineered to match the exact profile of the Fox NA2 foot nut. A standard socket cannot reliably capture this nut, making accurate torque application impossible. Because the NA2 foot nut uses an extremely fine thread pitch where even a 1 Nm deviation significantly increases clamping force, this dedicated socket is the only way to safely reinstall the nut to the 4.5 Nm specification.

Can the Fox NA2 Foot Nut Socket be used to break factory red Loctite torque?

No — this socket is designed for controlled torque work only, not high-force removal. Red threadlocker requires heat to break; apply heat first and break the Loctite bond using an appropriate metal wrench before installing this socket. Once the bond is broken, the socket can be used to finish loosening the nut and to reinstall it to the 4.5 Nm specification. Never apply heat with the socket installed, as it is rated for temperatures above 100°C but not for direct flame or torch exposure.

What is included with the Fox NA2 Foot Nut Socket and what torque wrench does it require?

Each purchase includes one NA2 foot nut torque socket. It requires a standard 3/8" drive torque wrench, which is not included. The torque specification of 4.5 Nm is marked directly on the tool. The 24 mm outer hex is also compatible with the Shockwave Two-Sided Custom Wrench for Pin Sockets, which supports a luggage-scale torque calculator setup.

Who should use the Fox NA2 Foot Nut Socket?

This socket is for mountain bike mechanics and advanced home service technicians performing air spring service on Fox forks equipped with the NA2 air shaft, such as the Fox 38 Factory. It is specifically useful when removing the NA2 negative sealhead, which requires prior removal of the foot nut. Anyone reinstalling the foot nut to the correct 4.5 Nm specification — where thread pitch sensitivity makes open-end tools inadequate — needs this socket for safe, accurate service.

1 5

Shockwave

Fox NA2 Foot Nut Socket

Name: Fox NA2 Foot Nut Socket
Brand: Shockwave Parts
Price: 17.49 CAD
Availability: InStock

$17.49 CAD

Sale Sold out sorry :(

Shipping calculated at checkout.

Fox NA2 Foot Nut Torque Socket

A dedicated socket for the Fox NA2 air spring foot nut. Designed to replace small crowfoot wrenches and allow precise 4.5 Nm torque application with a torque wrench. No more spinning it off for 1000 turns with an open-end wrench. Just break the red Loctite torque with a metal wrench and you’re good to go.

Important Compatibility Info

Designed specifically for Fox NA2 air spring foot nuts.
Required when servicing certain forks such as Fox 38 Factory (NA2 air shaft) where the full air assembly must be removed.
Made for use with a 3/8" drive torque wrench.
Not a universal 12 mm socket. This is model-specific.

Why This Tool Exists

To remove the NA2 negative sealhead, the foot nut must first be removed. This nut is installed with red threadlocker and tightened to a very low torque specification.

The thread pitch is extremely fine. Even a 1 Nm difference can significantly increase clamping force and potentially damage the shaft.

Specified torque: 4.5 Nm
Open-end tools make accurate torque difficult.
This socket fully captures the nut profile for a precise fit.

This tool is intended for controlled removal after the initial break of the factory torque and red threadlocker has already been done, and for precise reinstallation to spec.

High Temperature Material

Red threadlocker typically requires heat to break. This socket is printed in a high-temperature material capable of withstanding temperatures above 100°C before softening.

Do not use this tool to break factory torque or red threadlocker.
Do not apply heat with the socket installed.
Apply heat first and break the Loctite using an appropriate wrench.
Once the threadlocker bond is broken, this socket can be used to finish loosening the foot nut.
Use this socket for accurate reinstallation and final torque to 4.5 Nm.

The only operation this tool must not be used for is breaking factory torque or heated Loctite. It is designed for controlled torque work, not high-force removal.

Drive & Compatibility

Drive: 3/8" square drive
Outer hex: 24 mm
Compatible with standard 3/8" torque wrenches
24 mm hex is compatible with our Two-Sided Custom Wrench for Pin Sockets
The custom wrench includes preset leverage for use with a luggage scale torque calculator setup

Torque specification (4.5 Nm) is marked directly on the tool.

Specs

Application: Fox NA2 air spring foot nut
Torque spec: 4.5 Nm
Drive size: 3/8"
Outer hex: 24 mm
Material: High-temperature reinforced polymer
Includes: One NA2 foot nut torque socket

⚠️ Always depressurize the air spring before service. Break factory torque and red threadlocker with appropriate tools before installing this socket. Never apply heat with the socket installed. This tool is designed for accurate torque application and controlled loosening after bond break, not for high-force removal. By using this tool, you agree to our terms and conditions.

View full details

Item added to your cart

Fox NA2 Foot Nut Socket

Fox NA2 Foot Nut Socket

Fox NA2 Foot Nut Torque Socket

Country/region

Language