2160 Pcs Metric Screw Assortment M2 M3 M4 M5 M6 Nuts and Bolt Kit 12.9 Alloy Steel, Black Zinc Plated, Hex Socket Screws, 20 Sizes, Labeled Storage Box, For 3D Printers And Repairs

How to
Use: This metric screw assortment can be applied in everyday scenarios such as 3D printers, furniture, cars, and other repair tasks. Simply use the custom hex wrench included in the set to turn and insert the connection, then attach the nut, flat washer, and locking washer to reinforce and prevent loosening. After use, unscrew and disassemble in the reverse direction, and finally store everything in the provided storage box for future use.
Large Quantity: 2160 pcs of M2 M3 M4 M5 M6 screws with nut and washer combinations; the washers include flat washers and lock washers, featuring double washer reinforcement to avoid screw loosening. Paired with hex wrenches of matching sizes, installation and disassembly are straightforward. Black Galvanized & 12.9
Alloy Steel: These metric bolt kits are constructed from durable 12.9 alloy steel, utilizing black galvanized technology. The threads are tight and clean, free of burrs, and offer extended usability under various weather conditions.
Standardized Metric Sizes: Each metric screw in the M2-M6 bolt and nut set is available in four distinct lengths. These represent the 20 most frequently used sizes for routine maintenance. Adhering to the standard metric system, the average deviation is under 0.01 mm.
Wide Applications: This nuts and bolts assortment kit comes in sturdy, fixed divider boxes labeled with sizes and quantities on both the inside and outside. The sticker positions align with the product's compartments, facilitating easy storage and access; the box is well-suited for professionals and hobbyists who regularly repair furniture, lamps, electrical appliances, and similar items