Boxed Nylon Flat Washers M2-M10. Conventional sizes from M2 to M10 are in ready stock for fast delivery, and we provide Custom Boxed Fasteners with customized thickness, aperture and packaging. Made of high-insulation PA66 nylon material, these washers feature excellent insulation, shock absorption, anti-corrosion and heat insulation performance without scratching fastener contact surfaces. Classified dust-proof box packaging facilitates inventory management and screw matching assembly. As universal plastic Boxed Fasteners accessories, they are widely used for buffering and insulation assembly of electronics, new energy equipment and furniture hardware.