Elevate your RC model builds and assembly projects with this premium CNC-machined aluminum alloy spacer set. These precision-crafted non-threaded stand-off washers provide consistent, reliable spacing and surface protection across multiple standard sizes from M3 to M8. The flat washer design ensures even load distribution while the lightweight yet durable aluminum construction offers excellent structural integrity and corrosion resistance. Each spacer is manufactured to exact specifications, making them perfect for achieving precise gap management in RC models, robotics, and other technical applications. The versatile set accommodates various screw sizes, giving you flexibility in your builds while maintaining professional-grade quality. These sleek, cylindrical spacers feature smooth surfaces and precise dimensions, ideal for applications requiring exact spacing and protection between components. Whether you're working on a complex RC model or tackling a precision engineering project, these stand-off spacers deliver the reliability and precision you need.