Product Why Choose Our Products?1. Durable Nylon Flat Gasket, Lightweight, Scratch Resistant Corrosion And Good Insulation.2. Contains 500 Pieces, The Most Common Sizes - M2 M2.5 M3 M4 M5 M6 M8 M10.3. The Plastic Storage Boxes Are Pre-Sorted For Quick Identification And Loss Prevention.These Products Are Widely Used In Various Fields Such As Semiconductors, Automotive, Aerospace And Interior Equipment Industry. Mainly Used For Electrical Connections, Household And Commercial Equipment, Automobiles, Ships, Generators, Machinery And Systems.Strengthening MaterialIncreases The Contact Surface Of The Screw Or Nut With The Surface Of The Part To Prevent Wear Of The Surface Of The Part And To Tighten The Screw.D ;Resistant To Rust And CorrosionThe Product Is Light, Easy To Clean. Transport And Well Insulated. Long Service Life, Does Not Rust, Can Be Used For Joints That Need To Be Reinforced.