Muffler Mounting Screw OS22025619 for O.S. Engine 702P  [OS22025619]

Heavy-duty muffler fixing for model power units

The O.S. Engine OS22025619 is supplied as a single, threaded retention screw meant to secure mufflers and exhaust fittings on small-scale gas and nitro model engines. It is used where a strong threaded connection is required between a muffler flange and the engine or bracket.

For fitment, position the muffler flange against the exhaust outlet or mount plate, pass the screw through the flange, and tighten until it holds firmly. Avoid over-tightening to protect the mounting boss threads and the muffler flange. Basic hand tools are all that is needed for routine installation.

In service this screw is intended to resist loosening from vibration and thermal cycles; inspect it when changing exhaust parts or during scheduled maintenance to confirm integrity and replace if signs of wear appear.