Threadlocker Medium
THREADLOCKER BLUE 121 is a medium strength thread locking adhesive and sealant for use on fasteners between 1/4'' to 3/4'' in diameter. Locks fasteners and prevents movement of screw threads. Eliminates the loosening of bolts but allows for removal with the use of hand tools. Prevents rust and corrosion. Temperature range from -65°F to 300°F.