M14x1.5 Conical Wheel Nut Mégane 2 RS / Clio 3 RS

M14 x 1.5 Conical Wheel Nut: Correct Fitment for Renault Sport Models

Wheel fastening is essential to vehicle safety. A worn, damaged or unsuitable wheel nut can compromise clamping force, damage a wheel stud or fail to seat correctly against the wheel. On a performance car such as the Renault Mégane 2 RS or Renault Clio 3 RS, the wheel fasteners must match the exact specifications of the installation.

This M14 x 1.5 conical wheel nut, reference ECROU-vis-141114150, is intended for compatible installations using an M14 x 1.5 thread and a conical seat. It is suitable for relevant wheel-fastener replacement and maintenance applications, provided compatibility with the installed wheel and studs has been confirmed.

Product reference: ECROU-vis-141114150. Thread: M14 x 1.5. Seat type: conical. Stated length: 23 mm. Check the seat geometry and dimensions before installation.

Why Replace a Worn or Incorrect Wheel Nut?

Wheel nuts are exposed to repeated tightening loads, vibration and demanding driving conditions. Damaged threads, a worn seating surface or a deformed nut can prevent the correct assembly from being achieved.

Continuing to use a defective fastener can damage the wheel studs, compromise wheel seating or contribute to loosening. A seat profile that does not match the wheel can also concentrate loads on an unsuitable contact surface.

When replacing a Renault Sport wheel nut, inspect the threads, seating surface and compatibility with the wheel. If a nut shows signs of wear or does not screw on smoothly, the installation must be checked before the vehicle is returned to the road.

M14 x 1.5 Thread and Conical Seat: Key Specifications

The designation M14 x 1.5 indicates a nominal thread diameter of 14 mm and a thread pitch of 1.5 mm. These dimensions must match the wheel stud exactly. A nut with an incompatible thread must never be forced into place.

A conical seat is the angled contact surface between the nut and the wheel. Its geometry must match the wheel manufacturer's specifications. A conical-seat nut must not be used on a wheel designed for a spherical or flat seat.

M14 x 1.5 Conical Wheel Nut Specifications

• Product: Conical wheel nut.
• Product reference: ECROU-vis-141114150.
• Thread: M14 x 1.5.
• Seat type: Conical.
• Stated length: 23 mm.
• Main applications: Renault Mégane 2 RS and Renault Clio 3 RS, subject to wheel and fastening configuration.

Check the length, seat profile and functional dimensions before ordering. These details are particularly important when aftermarket wheels are fitted or the original wheel-fastening arrangement has been converted to a stud-based system.

Compatible Vehicles and Models

This conical wheel nut is listed for the following Renault Sport applications:

• Renault Mégane 2 RS 2.0 16V Turbo 225 hp: check the wheel fastening arrangement and seat type.
• Renault Mégane 2 RS 2.0 16V Turbo 230 hp: verify compatibility with the installed studs and wheels.
• Renault Mégane 2 RS R26: confirm the fastening configuration before ordering.
• Renault Mégane 2 RS R26.R: check the specifications of the wheel fasteners currently fitted.
• Renault Mégane 2 dCi 175: compatibility must be confirmed according to the vehicle version and wheel installation.
• Renault Clio 3 RS 2.0 16V 197 hp: verify the thread and wheel seat profile.
• Renault Clio 3 RS 2.0 16V 200 hp: check the fastening type and specifications of the installed wheels.

Important: this list identifies vehicle applications associated with the product, but it does not replace checking the actual installation. Aftermarket wheels, dedicated wheel studs and modified fastening systems may require different specifications. Do not order based on the vehicle model or engine alone.

Wheel Fastener Installation and Maintenance

Before installation, inspect the threads and contact surfaces. The nut must screw on correctly, and its seat must match the wheel. Any installation showing unusual resistance, excessive play or incorrect seating must be checked.

Tightening must follow the torque specification provided by the vehicle manufacturer or the manufacturer of the fitted components. Use the appropriate tools and a calibrated torque wrench. Do not apply a generic torque value without checking the recommendations for your specific configuration.

For sports cars regularly driven on the road or track, periodic inspection of wheel nuts, studs and wheels helps identify deterioration before it compromises the fastening system.

Optimiz Access: Sports Car Parts and Maintenance Since 2010

Since 2010, Optimiz Access has supplied parts and accessories for the maintenance and personalisation of sports and premium vehicles, including Renault Sport, Audi, Volkswagen, Porsche, Mercedes and BMW.

Based in the Hauts-de-France region of France, near Cambrai, Valenciennes, Arras, Seclin, Lille, Douai and Saint-Quentin, the company also offers installation and maintenance services at its premises. Orders can be shipped throughout France and internationally, subject to the applicable shipping terms.

For your Renault Mégane 2 RS or Renault Clio 3 RS, identify the required wheel fastener precisely before replacing a wheel nut. Other fastening components and available complementary products can be found at the bottom of this product page.

Frequently Asked Questions About the M14 x 1.5 Conical Wheel Nut

What does M14 x 1.5 mean on a wheel nut?
This designation indicates an M14 thread with a nominal diameter of 14 mm and a pitch of 1.5 mm. The thread must match the wheel stud.

What is the difference between a conical seat and a spherical seat?
A conical seat has an angled contact surface, whereas a spherical seat has a rounded profile. They are not interchangeable: the nut must match the wheel's specified seat type.

Does this wheel nut fit every Mégane 2 RS and Clio 3 RS?
It is listed for these vehicle families, but compatibility also depends on the studs, wheels and any modifications to the fastening system. Check the dimensions and seat profile before ordering.

Which socket should be used to install this wheel nut?
The required socket size must be checked against the nut's drive profile. Using the correct socket helps prevent damage during installation. The socket size cannot be determined from the thread diameter alone.

Can this wheel nut be used with aftermarket wheels?
Only if the thread, seat profile, usable length and other dimensions match the wheel and fastening-system specifications. Check the wheel manufacturer's recommendations.

Where can I find complementary products?
Available complementary products are listed at the bottom of this product page. Check the compatibility of each reference before combining it with your vehicle.

Choose the Correct Wheel Fastener for Your Renault Sport

To help maintain a secure wheel installation, choose an M14 x 1.5 conical wheel nut that matches the specifications of your wheels and studs. Find reference ECROU-vis-141114150 at Optimiz Access and check your vehicle's configuration before placing your order.

Note: wheel nuts, wheel studs and wheel bolts are different fastening components. The correct choice depends on the installed fastening system, seat geometry and wheel specifications. See the complementary products at the bottom of this page.