Honda 10mm Self Locking Nut
Part Number: 90212-SA5-003

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Product Details

The Honda OEM 10mm Self-Locking Nut is a genuine factory replacement designed to provide secure fastening for various Honda and Acura exhaust and suspension components. Manufactured to Honda's original equipment specifications, this self-locking nut helps maintain a reliable connection in applications exposed to vibration, heat, and everyday driving conditions.

Commonly used for exhaust system mounting and suspension stabilizer bar link connections, this genuine Honda fastener is an excellent replacement for damaged, corroded, stripped, or previously removed factory hardware.

Unlike a conventional nut, the self-locking design incorporates a locking feature intended to resist loosening during operation. This makes it particularly useful for mounting locations where maintaining proper fastener tension is important.

Whether you're replacing an exhaust pipe, installing a catalytic converter, servicing a sway bar end link, or restoring factory mounting hardware, this genuine Honda OEM Self-Locking Nut provides the original equipment fit and dependable construction needed for a proper installation.

Features

Genuine Honda OEM Part: Authentic factory replacement manufactured to Honda's original equipment specifications.
10mm Self-Locking Nut: Designed for compatible 10mm threaded mounting applications.
Self-Locking Design: Helps resist loosening caused by vibration and normal vehicle operation.
Direct OEM Replacement: Replaces the original factory nut in designated mounting locations.
Exhaust System Compatibility: Used in select catalytic converter, exhaust pipe, muffler, and exhaust flange mounting applications.
Suspension Compatibility: Also used in select stabilizer bar and sway bar end link mounting applications.
Durable Metal Construction: Designed for dependable performance in compatible automotive applications.
Factory Fit and Design: Maintains the original Honda fastening configuration.
Ideal for Exhaust Repairs: Excellent for replacing damaged or corroded hardware during exhaust system maintenance.
Suspension Service Friendly: Suitable for applicable sway bar end link replacement and suspension repairs.
Individual Replacement: Convenient for replacing a single damaged or missing nut.
OEM Part Number: 90212-SA5-003.

Additional Information

Manufacturer: Honda
Part Number: 90212-SA5-003
OEM Description: Nut, Self-Lock (10mm)
Other Names: Exhaust Flange Nut / Catalytic Converter Nut / Exhaust Pipe Nut / Stabilizer Link Nut / Sway Bar End Link Nut / Self-Locking Nut
Product Type: OEM Replacement Hardware
Installation Location: Exhaust System / Suspension – Application Dependent
Nominal Thread Diameter: 10mm
Design: Self-Locking Nut
Material: Metal
Replaces: 90306-SB2-010, 90306-SB2-013
Quantity: Sold Individually (1 Nut)

Common Reasons for Replacement

Factory self-locking nuts should be inspected whenever the components they secure are removed for maintenance or repair.

Damaged or stripped internal threads
Rounded or damaged nut
Corrosion or excessive rust buildup
Loss of the original locking effectiveness
Missing factory mounting hardware
Previous improper tightening
Exhaust pipe or catalytic converter replacement
Muffler installation or repair
Sway bar end link replacement
Suspension maintenance
Vehicle restoration or rebuilding
Replacing damaged or previously removed self-locking hardware helps restore the original factory fastening arrangement.

Installation Notes

Proper installation is important for maintaining a secure connection between the mounted components.
Before installation, inspect the mounting stud or bolt for damaged threads, corrosion, or excessive wear.
Confirm that the replacement nut matches the original hardware and is compatible with your specific mounting location.
Carefully thread the new Honda OEM self-locking nut onto the mounting stud or bolt to prevent cross-threading.
Always follow the factory service manual for the correct tightening specification and installation procedure for your specific vehicle.
Use a calibrated torque wrench and avoid overtightening, as excessive force can damage the mounting threads or surrounding components.
Important: Self-locking nuts may be designated as non-reusable by Honda. For applications requiring replacement after removal, always install a new nut rather than reusing the original hardware.
For exhaust applications, inspect the corresponding mounting studs, bolts, flanges, and gaskets during reassembly.
For suspension applications, confirm that the stabilizer bar link or associated component is properly positioned before final tightening.
After installation, verify that all mounting hardware is securely fastened according to the factory specifications.

Note:

Includes one genuine Honda 10mm Self-Locking Nut. Mounting bolts, studs, exhaust gaskets, suspension components, and additional hardware are sold separately unless otherwise specified.

For Honda enthusiasts performing exhaust repairs, replacing suspension components, or restoring factory hardware, this genuine Honda OEM Self-Locking Nut provides the correct factory design and dependable fastening performance needed for a secure installation.