Permatex Permatex Medium Strength Threadlocker (Blue) - 24240 is a product designed to prevent loosening and leakage of threaded fasteners. It is a blue-colored threadlocker that is ideal for use on small screws, bolts, and nuts. This medium strength formula is resistant to vibration, heat, and chemicals, making it suitable for a wide range of applications. It can be used on both metal and plastic surfaces and provides a reliable and durable hold. This threadlocker is easy to apply and dries quickly, forming a secure bond that can be removed with hand tools when needed. It is commonly used in automotive, industrial, and household repairs to ensure that fasteners stay in place and maintain their tightness.