What this is A set of precision aluminium shims sorted by size for RC part fastening. Sizes included: M3, M4, M5, M6, M8, M10. Some shims are anodized aluminium and multi-colored for easy identification and improved surface protection. Available as single pieces, including a 1/2 size option. Key benefits — why you need these shims Precise spacing and alignment: thin, accurately sized shims let you fine-tune fitments for bearings, gears, and suspension links to eliminate play and binding. Lightweight and durable: aluminium construction adds minimal weight while maintaining reliable performance in RC applications. Fast visual identification: anodized, multi-colored pieces make it quick to find the correct shim while working on tight builds or repairs. Flexible purchase options: sold as single pieces for targeted replacement or small adjustments without buying large kits. Important attributes Function: Thin washers/shims for spacing, alignment, and fastening in RC parts. Compatibility: Sized for common RC fasteners and components (M3, M4, M5, M6, M8, M10). Material: Aluminium; selected pieces are anodized aluminium and multi-colored. Performance: Lightweight, stable spacing under load, suitable for precision adjustments. Example item Grey shim: M6 x 12 x 1 — quantity 1 piece. Practical use scenarios 1. RC car steering: Use M3–M6 shims to remove play between the steering bellcrank and linkage, improving steering precision without replacing components. 2. Motor and gearmesh spacing: Add thin M5 or M6 shims to fine-tune motor position for ideal gear engagement and reduced wear. 3. Bearing and axle alignment: Stack single-piece shims to achieve correct bearing preload or to center wheels and gears for smoother rotation. Notes for installers Check the required thread/bore compatibility for each shim size before installation. Combine shims when intermediate thickness is required; single-piece 1/2 size options allow finer adjustments. The anodized finish aids identification and adds surface protection but does not change the nominal shim dimensions.