Fuel-rail assembly

A fuel-rail assembly comprising:

• an injector having a proximally disposed inlet portion defining an inlet channel and extending along an axial direction,
• a fuel rail connected to the inlet portion via an outlet portion that defines an outlet channel,
• a nut element having an inner thread and at least indirectly engaging the outlet portion to transfer an axial clamp force by which a first contact surface of the inlet portion is pressed against a second contact surface of the outlet portion to provide a fluid-tight connection between the inlet channel and the outlet channel,
• an adapter with an axially extending through-opening in which the inlet portion is at least partially received, and with an outer thread that engages the inner thread, which adapter at least indirectly presses against the inlet portion to transfer the clamp force,
• wherein at least one intermediate element is interposed between the adapter and the inlet portion, and the adapter indirectly engages the inlet portion via the at least one intermediate element,
• wherein the intermediate element is a snap ring made of metal,
• wherein the inlet portion comprises a first annular recess which extends radially inwards and in which the snap ring is partially disposed, and
• wherein the adapter comprises a second annular recess which extends radially outwards and in which the snap ring is partially disposed.