This cylinder head nut is suitable for older Citroën engines with side valves and matching cylinder head bolts. The cap nut distributes clamping force evenly over the cylinder head and supports a reliable seal of the head gasket. The metric thread with standard pitch enables a stable connection with the bolt. The hexagon head fits common tools and allows controlled tightening. The dimensions correspond to frequently used heads in this engine segment. The material tolerates thermal and mechanical load in the engine compartment. The nut serves as replacement for worn fastening components in the cylinder head area.
