Our Series RR-MM Retaining Rings for Metric adapters are designed to provide a secure and reliable connection for Metric-based fittings in fluid power systems. Made from durable carbon steel, these retaining rings are engineered to fit perfectly into grooves on Metric adapters, ensuring that the components remain tightly fastened and leak-free during operation. Their robust construction offers excellent resistance to wear and pressure, making them ideal for high-performance hydraulic and pneumatic applications. These retaining rings help maintain the integrity of your system by preventing loosening or detachment, ensuring long-term reliability and optimal performance.