VIGRUE M3 M4 M5 Alloy Steel Hex Socket Button Head Cap Nuts Flat Washers Kit Black Screw Assortment(570 PCS)

*Made from high quality 10.9 grade alloy steel known for its dependable and rigid strength as well as its corrosion resistant quality. This type of steel is able to withstand drastic weather and temperature changes including placement within extremely humid areas. These qualities ensure hard-wearing making these screws and nuts virtually indestructible.

*Serves a wide range of use and purpose from furniture repair and plumbing to woodwork and other diy projects. Ideal for use by a variety of workers and repairmen from plumbers to assemblymen both professional and amateur, even diyers can opt to use it

*Comes with a sturdy plastic organizer made from high quality plastic to efficiently and effectively bear the weight of the whole package.

*Package quantity: 570Pcs screw and nuts included(m3, M4, M5); the surface of the 10.9-Class hexagon socket screws is becoming hardness and more stronger after heat treatment and with good feature of anti-oxidation, high temperature resistance, anti-corrosion.

*Guaranteed not only is it made from high-quality elements this kit also promotes environmental protection and is guaranteed to be mercury-free and toxic-free generally making it poison-free