Darbond 2243: Oil resistant thread locker adhesive & sealant This is a medium strength thread locker adhesive designed for use on threaded fastners M8-M20 with a maximum gap fill of 0.13mm. It can be used on a surface with slight oil contamination and is easily removed.
Darbond 2271: High strength anaerobic thread locker
This is a one-component, medium to low viscosity, high strength, anaerobic thread locker. It cures when confined in the absence of air between close fitting metal surfaces. It is used for permanently locking and sealing threaded fasteners M16-M26 and prevents loosening, leakage and rust of thread.