

Genuine Renault M10x150 Bolt - Clio 3 RS / Cup / R3
En cours de réappro
Do not compromise your chassis rigidity or drivetrain stability with stretched or corroded hardware. This genuine Renault M10x150 bolt is the certified essential part for securing the rear axle mounting bracket to the body or for fastening the gearbox mount to the chassis on your Renault Clio 3 RS, Clio R3, or Clio 3 X85 Cup. At Optimiz Access, we maintain real physical stock to ensure immediate shipping, preventing you from stalling your mechanical build due to a missing critical component.
The risk of neglecting structural hardware on your Renault Sport vehicle
Reusing a structural bolt that has already undergone torque cycles and thermal stress on a Clio 3 RS is a major risk. By failing to replace your M10x150 bolt with a genuine Renault product, you expose yourself to metal fatigue failure. Without a perfect fitment of the bracket to the chassis, your rear axle loses its precision, and without a rigid gearbox mount fastening, you risk parasitic engine movements that can damage your transmission. Failing to choose the manufacturer standard means putting the integrity of your performance vehicle at risk.
A versatile bolt for competition: Clio R3 and X85 Cup
This M10x150 bolt is not just a simple piece of hardware. It is engineered to meet the high demands of racing chassis such as the Renault Clio 3 X85 Cup and the Clio R3. Its strength class and thread pitch are optimized for:
- Securely fastening rear axle mounting brackets to the car body.
- Reliable mounting of the gearbox support, which is crucial for precise gear shifts under hard driving conditions.
The Optimiz Access commitment: Real Stock and Technical Expertise
Since 2010, Optimiz Access has established itself as the specialist in bespoke customization and sports vehicle maintenance. We know that the success of an overhaul depends on the details. This is why we refuse drop-shipping: this part is physically present in our real stock in Northern France.
Whether you are located in Lille, Valenciennes, Arras, or Cambrai, you can benefit from fast shipping or in-store collection. Our technicians, experts in precision mechanics near Douai and Seclin, use these same references for the maintenance of sports and premium vehicles for our clients.
Frequently Asked Questions about the M10x150 Bolt installation
Why replace this bolt when removing the gearbox mount?
Bolts undergo elastic stretching when torqued to specification. By not replacing them, you lose the optimal clamping force, which can lead to loosening under the intense vibrations of a Renault Sport engine.
Is it compatible with all Clio 3 models?
This reference is specifically validated for sports and racing versions (RS, Cup, R3). Using inferior quality hardware on these models is a shortcut that can be costly in the event of structural failure.
Do you offer international shipping?
Yes, Optimiz Access exports worldwide. We guarantee fast delivery so that drivers from Saint-Quentin to the other side of the world are never held back from their passion.
You will find complementary nuts, brackets, and engine mounts at the bottom of this product page to complete your assembly.


