Part Number: GB/T5782-M8X50 (PAGB/T5782-M8X50)
The part is used for engine models: Parsun F9.9/F15, F20/F25
This M8 × 50 partially threaded hexagon bolt secures electric starter-motor mounting hardware.
The unthreaded shank passes through the mounting lug, while the threaded end engages the retaining connection.