hexagonal nut / metal / self-sealing
A SEAL LOCH sealing nut is a one-piece component that seals any leakage out or in. It can be executed in the thread or bearing face.
It is commonly used for pneumatic, hydraulic or fuel systems. With SEAL LOCK sealing nuts, users can get a high-strength connection without the loss of any pre-load forces and they can even be used in repeated screwings.