Looking to add some custom flair to your engine bay or RC model? These red aluminum alloy washers are exactly what you need! This 20-piece set features M3 cup head washers that fit perfectly with M3 countersunk screws, making them ideal for automotive applications, front and rear bumpers, engine bays, trunk lids, and RC model cars. The vibrant red color adds a pop of custom style while the aluminum alloy construction provides durability without adding significant weight. Each washer measures 7.8mm in outer diameter with a 2mm thickness, giving you the perfect finishing touch for your projects. Whether you're a car enthusiast looking to customize your engine compartment, an RC hobbyist upgrading your model, or someone working on various mechanical projects, these washers deliver both function and style. They're commonly used in automotive, sheet metal, plumbing, and electrical applications - basically anywhere you need reliable washers that also look good. The 20-piece count means you have plenty for current projects and future needs. Installation is straightforward - just place them under your M3 countersunk screw heads and tighten as usual. It's amazing how such small details can really elevate the overall look of your project while providing practical function. Give your creations that professional, custom-finished appearance with these affordable but effective aluminum washers!