Loctite Threadlocker Blue 242 is designed to lock and seal threaded fasteners and prevent loosening from vibration. Ideal for 6 to 19mm fasteners, this unique formula is great for small motors, mowers, and power equipment. Loctite Threadlocker Blue 242 protects threads and prevents from leaks, rusting, and corrosion and eliminates the need to stock up on expensive lock nuts and washers. Fast and easy to use, this medium strength threadlocker sets in just 10 minutes and fully cures in 24 hours. Loctite Threadlocker Blue 242 is particularly suited for applications on less active substrates such as stainless steel and plated surfaces, where disassembly is required for servicing.