Tamiya 3mm Rosette Washer - 9805631/19805631

A rosette washer is a type of washer with a raised, star-like pattern (rosettes) on its surface. This design increases the surface area, providing better grip and helping to distribute pressure more evenly, which can prevent screws from loosening due to vibration.

This washer is specifically designed for Tamiya models. While it may fit 3mm hardware on other brands, compatibility is not guaranteed and it may not offer the same intended benefits.

Product information indicates this is a single part number (9805631/19805631), typically sold individually or as part of a larger hardware set depending on the retailer. Please check the specific product listing for quantity.

No, this is a 3mm washer and is only intended for use with 3mm screws or bolts. Using it with larger hardware will not provide adequate support or security.

Consult your model's assembly manual. They are often recommended for high-vibration areas such as motor mounts, suspension components, or chassis braces to ensure fasteners remain tight.

While specific material composition is not detailed, Tamiya hardware is generally made from durable, high-quality metal alloys designed for RC applications.

Ensure you are using a 3mm screw/bolt. This washer is specifically designed for 3mm hardware.

Verify that the correct number of washers are used as per the model manual. Check that the mating surface is clean and not damaged. Ensure the screw is not stripped.

This is unlikely with standard Tamiya parts. Ensure the washer is not exposed to harsh chemicals or extreme moisture. Clean with a dry cloth.