Audi Q5 FY Hexagon Flange Screw M14X1.5X145 Rear Support Frame Set N91228001

Audi Q5 FY Flange Bolt M14X1.5X145 Rear Beam Set is a precision fastening component from the Wheel Locks, Bolts, Nuts, and Studs group, designed for use in the rear suspension. A used, original flange bolt ensures a stable connection of the rear beam elements, contributing to safe handling and predictable vehicle behavior. This solution is dedicated to users and workshops that expect compliance with factory Audi standards.

Specifications and technical data

• SKU: N91228001
• Mark: Audi
• Condition: Used
• OEM Part Number: N91228001
• Substitutable numbers: N91228001, N91 228 001
• Location on the vehicle: Rear
• Category: Wheel Nuts, Bolts & Studs

Purpose and Function in the Suspension System

The flange bolt from the rear beam set in the Audi Q5 FY is responsible for a secure and durable connection of structural elements in the rear of the vehicle. Its placement in the rear area means this component operates under high dynamic loads, making the correct thread geometry and working length, matched to the beam's construction, crucial.

A properly selected flange bolt helps maintain:

• rear axle stability during acceleration and braking,
• correct suspension geometry under changing loads,
• even force transfer to the body during everyday use.

Technical and Construction Characteristics

The flange bolt used in the Audi Q5 FY is designed as a component with increased resistance to torsional and shear loads, typical for rear beam mountings. The use of a flange under the bolt head improves pressure distribution on the contact surface, reducing the risk of connection loosening during prolonged use.

The thread with the appropriate pitch and a working length matched to the beam's construction enable:

• precise tightening of the connection while maintaining the recommended torque,
• stable bolt guidance in its seat,
• repeatable assembly and disassembly in service conditions.

Application in Audi Q5 FY Service and Repairs

The rear beam flange bolt is particularly important for tasks such as suspension element replacement, beam refurbishment, or post-collision repairs. Using a dedicated Audi component ensures consistency with factory assembly technology and facilitates subsequent drivetrain diagnostics.

In workshop practice, this type of bolt is used, among others, for:

• disassembly and reassembly of the rear beam,
• replacement of bushings, control arms, or other components attached to the beam,
• checking and correcting suspension geometry after body and mechanical repairs.

Benefits of Using an Original Audi Part

Choosing a flange bolt from the rear beam set dedicated to the Audi Q5 FY primarily means compliance with manufacturer documentation and predictable connection behavior over a long period of use. A used Audi OE part allows for economical repair while maintaining parameters close to factory specifications, which is particularly important for critical suspension mounting points.

This solution is beneficial for both professional workshops and individual users who expect a part tailored to a specific model without the need to experiment with aftermarket alternatives of uncertain parameters.

Selection and Safe Purchase of a Used Flange Bolt

When selecting a rear beam flange bolt for the Audi Q5 FY, it is worth paying attention to compliance with manufacturer markings and its intended use for a specific vehicle area. It is helpful to use catalog numbers and service documentation, which minimizes the risk of installing an incorrect component in a critical structural point.

If you want to streamline the purchasing process and get practical tips on verifying used components, check out the guide Safe Online Purchase of Used Car Parts – A Step-by-Step Guide, which describes, among other things, strategies for selection based on manufacturer markings and examples of applications in various part categories.

If you are planning a comprehensive repair or upgrade of the rear suspension area in your Audi and need other parts from the same group, such as mounting bolts, nuts, or assembly studs, check the available parts in the Audi Wheel Locks, Bolts, Nuts, and Studs category.