【What You Get】- Our Metric screw kit contains 420pcs hex socket M2 M3 M4 M5 screws, 465pcs M2 M3 M4 M5 nuts and 505pcs washers of corresponding sizes, which is enough to meet daily needs.【Standardized Metric Sizes】- Our Metric M2 M3 M4 M5 Screw Assortment Set included: M2 screws (bolt length:4mm,8mm,12mm,16mm), M3 screws (bolt length: 6mm,8mm,12mm,16mm), M4 screws (bolt length: 8mm,12mm,16mm,20mm), and M5 screws (bolt length:8mm,12mm,16mm,20mm), with 4 sizes of each, for a total of 16commonly used sizes that conform to the standardized metric system with an average error of less than 0.01 mm.【Good storage and assortment】- The M2 M3 M4 M5 Screw Assortment Kit comes with a thickened plastic storage box with all the screws, nuts and washers sorted and packed in different compartments and neatly organized, with detailed labels on the inner and outer lids for easy access and storage.【Premium Material】- These bolts and nuts are made of high-quality 12.9grade alloy steel for strength, superior rust resistance, and excellent oxidation resistance for durability. Adopting black zinc plating technology, they have a smooth surface that does not stain oil and will not rust, it can be used indoors and outdoors for a long time.【Wide Application】- The screw set can be widely used in different kinds of precision machinery industry, classified instruments, instruments, electronic products, household appliances, furniture repair, communication products, locks, toys, DIY project fasteners. The exquisite screw organizer box is perfect as a gift for professionals and amateurs who regularly repair furniture, lamps, appliances and more.
