Description
The disc rotor retaining screw may be small, but it plays an important role in proper brake installation. Often overlooked or left out during rotor replacement, this screw ensures the rotor is mounted squarely to the hub and stays in place while the caliper is installed. Without it, the rotor can shift or rock until the wheel is tightened, adding extra steps and potential alignment issues. Though removing these screws can be tricky—especially with seized or stripped heads—using heat or an impact driver helps prevent damage. Always replace the retaining screw to ensure a precise, secure fit and a smoother installation process.