Features and : Made of polyamide, ensuring stable, long-lasting performance and insulation, providing reliability and environmental friendliness. Resistant and Easy to Clean: Water proof fasteners that are resistant and easy to clean, ensuring longevity and easy maintenance with just a cloth. Versatile Sizes: Includes a wide range of sizes for different purposes, offering flexibility and convenience for various projects. Convenient Storage: All fasteners are well packed in a plastic box for convenient carry and storage, enabling easy organization and transportation. Ideal for Electrical and Mechanical Hardware: Great for use in electrical and mechanical hardware, reducing maintenance over other materials, providing efficiency and durability. Specification: Material: Polyamide Type&Quantity: M2 Hex Nut 10pcs M2 Washer 10pcs M2x4mm Screw 5mm 5pcs M2x12mm Screw 14mm 5pcs M2.5 Hex Nut 10pcs M2.5 Washer 10pcs M2.5x6mm Screw 8mm 5pcs M2.5x12mm Screw 14mm 5pcs M3 Hex Nut 10pcs M3 Washer 10pcs M3x6mm Screw 8mm 5pcs M3x12mm Screw 14mm 5pcs M4 Hex Nut 10pcs M4 Washer 10pcs M4x8mm Screw 10mm 5pcs M4x15mm Screw 18mm 5pcs M5 Hex Nut 10pcs M5 Washer 10pcs M5x10mm Screw 1m 5pcs M5x20mm Screw 2m 5pcs Box Size: 13*7*3cm5.11*2.75*1.18" Package Includes: 1 Box * Screw Nut Washer Set Package List