Screw of oil spray nozzle for piston of internal combustion engine, has screw-in portion that is arranged extending upto the bore until external thread and inner thread engages together

摘要

The screw (1) has a screw-in portion (2) with an external thread (3) and an axial through hole (4). The screw-in portion is inserted into inner thread (6) of counter element through a bore (7) which is connected to oil passage (8). The screw-in portion is arranged extending upto the bore until the external thread and inner thread engages together.