PC Fasteners -Crimp Nut Storage Box Generic Brand Highlights Crimp Nut Storage Box Description: High Quality M3 M4 M5 M6 Hex Socket Head Cap Screws Screws Bolts Nuts Washer Kit The kit is made of high quality aluminum alloy, which is characterized by its strength and has good corrosion resistance in bad environment like high temperature, cold and high humidity area Many screw sizes M3 M4 M5 M6 with matching nuts and flat washers meet people's different requirements, essential for your household life All screw nuts and washers will be packed in a strong and convenient case, each different type is separated, is organized for you and easy to sort, it can be used for storage box This kit can be widely used in all kinds of precision machinery, household appliances, classified instruments, instruments, communication products, locks, lamps, lights, toys , electronic products, etc. specification: Material: steel Packing box: Plasitc Package includes: 1 piece of Screw Bolt Nuts Washer Kit