High strength and precision retention define Loctite 648, Retaining Compound, High Strength, 50 ml, designed for securing cylindrical parts such as bearings, bushings, and sleeves. Its advanced anaerobic formula fills gaps between close-fitting metal surfaces, creating a strong, vibration-resistant bond that ensures maximum load transfer. With temperature resistance up to 175°C (347°F), it performs reliably in high-speed and heavy-load applications. The compound resists oils, fuels, and industrial fluids, maintaining long-term stability under harsh operating conditions. Ideal for marine engines, industrial assemblies, and metric fabrication, Loctite 648 delivers lasting retention and superior performance.