M5x30 socket head cap screw SADEV / Renault Clio 3 CUP / Renault Clio 2 CUP / ST75-14

SADEV M5x30 (8.8 grade, zinc-plated) socket head cap screw for Renault Sport sequential gearboxes

This M5x30 (8.8 grade, zinc-plated) socket head cap screw is a new part designed for SADEV ST75-14 sequential gearboxes used in the Renault Clio 3 Cup and Renault Clio 2 Cup. Listed under SADEV part number 0301126 and Renault Sport part number 01 00 301 126, it meets the assembly requirements for competition transmissions used in circuit racing.

Purpose of the part

The socket head cap screw provides mechanical fastening for components within the sequential gearbox. Its cylindrical, hex-socket head allows for precise and reliable tightening—essential for securely holding components that are subject to vibrations, torque fluctuations, and the significant stresses encountered during competitive use.

Symptoms or consequences of a worn or defective screw

A screw that is damaged, marked, oxidized, elongated, or has a worn-out drive recess can compromise the quality of the fastening. This may lead to gradual loosening, abnormal vibrations, a loss of secure attachment for assembled components, or difficulties during the disassembly and reassembly of the gearbox.

Benefits of replacement

• Ensures a reliable fastening during the maintenance or overhaul of the sequential gearbox.
• Allows for a proper reassembly using a new screw that meets SADEV and Renault Sport specifications.
• Reduces the risk of loosening under intensive operating conditions.
• Preserves the assembly quality of transmission components.
• Ideal for preventive maintenance in motorsport.

Specifications

• Brand: SADEV
• Product: M5x30 socket head cap screw (CHc)
• Strength class: 8.8
• Finish: Zinc-plated (ZN)
• Condition: new product
• SADEV part number: 0301126
• Renault Sport part number: 01 00 301 126
• Application: SADEV ST75-14 sequential gearbox
• Packaging: Price per 1 screw

Vehicle compatibility

• Renault Clio 3 Cup equipped with the SADEV ST75-14 sequential gearbox
• Renault Clio 2 Cup equipped with the SADEV ST75-14 sequential gearbox

Conclusion

This SADEV M5x30 class 8.8 zinc-plated (ZN) socket head cap screw is an essential component for ensuring a reliable and compliant assembly when servicing a Renault Sport sequential gearbox, such as those found in the Clio Cup.