Motorcycle modified rubber well nuts brass nut expansion fasteners 10 pack for fairing windshields and body panels in three thread sizes M4 M5 M6 with black rubber construction
Motorcycle modified rubber well nuts brass fasteners 10 pack for fairing and windshield installation

These brass nut rubber well nuts offer motorcycle enthusiasts and mechanics a practical solution for securely attaching aftermarket fairings, windshields, and body panels. The fastening system works by combining a durable brass threaded insert with a compressible black rubber sleeve that expands behind the mounting surface. This creates a permanent, vibration-resistant fixture ideal for motorcycle applications where traditional nuts and bolts might be impractical or where access to the rear of the panel is limited. The ten-piece pack includes three standard metric thread sizes to accommodate different mounting requirements across various motorcycle modification projects.
Features and Construction

The fasteners utilise a two-material construction designed specifically for panel mounting applications on motorcycles. Each component serves a distinct practical purpose in creating a secure, long-lasting fixture.
Material and Build
The brass threaded nut component provides the durable metal threads necessary for secure bolt fastening. Brass offers corrosion resistance that helps maintain thread integrity in motorcycle environments exposed to weather and road conditions. The black rubber expansion sleeve is designed to compress when the bolt is tightened, expanding radially to grip the reverse side of the mounting panel. This compression creates both mechanical retention and a degree of vibration damping that's particularly valuable on motorcycles.
Size and Practical Fit
Three distinct size variants are included in the pack to match different bolt requirements. The M4 size measures 11mm, the M5 size measures 12mm, and the M6 size measures 13mm by 13.6mm. These dimensions correspond to standard metric hardware used throughout motorcycle construction and aftermarket modifications. Having all three sizes available in one pack means you can address various mounting points on your motorcycle without needing to purchase separate fastener packs for each thread size requirement.
Uses and Placement

These fasteners are specifically indicated for motorcycle modification applications, with particular relevance to fairings and windshields. Their design addresses common challenges in motorcycle customisation and repair work.
Event or Professional Use
For professional motorcycle workshops or enthusiasts undertaking significant modification projects, these fasteners provide a reliable mounting solution that creates clean installations. The ability to mount panels without needing rear access simplifies installation in confined spaces common on motorcycle frames. The vibration-resistant nature of the rubber compression helps maintain fastener integrity during regular riding, reducing the likelihood of loosening over time compared to some purely metallic fastening systems.
Everyday Home Use
For home mechanics working on motorcycle maintenance or customisation, the ten-piece pack offers sufficient quantity for typical projects like installing aftermarket fairings, attaching windshields, or mounting accessory panels. The mixed size selection means you're likely to have the correct fastener for different mounting points without needing to measure and purchase specific sizes separately. The installation process requires only basic tools—a drill for creating the mounting hole and appropriate wrench for tightening the bolt.
Benefits and Buying Value

The practical advantages of these fasteners centre around their specific design for motorcycle applications and the convenience of having multiple sizes in one purchase.
Reuse and Low Maintenance
While designed as permanent fasteners once installed, the brass construction helps maintain thread integrity if removal becomes necessary. The corrosion-resistant properties of brass mean the threaded portions are less likely to seize or corrode in place compared to some ferrous metals. This can be valuable for future maintenance or modification work where panel removal might be required.
Why Choose This Product
This product addresses a specific need in motorcycle modification—secure panel mounting without rear access requirements. The combination of brass threads and rubber compression provides both strength and vibration resistance. Having three thread sizes in one pack offers flexibility for different mounting points on your motorcycle project. For anyone installing aftermarket fairings, windshields, or body panels, these fasteners provide a purpose-designed solution that matches the requirements of motorcycle applications.






