Threads design on the surface of screw, This type of steel is able to withstand drastic weather and temperature changes including placement within extremely humid areas. 2. These qualities ensure hard-wearing making these screws and nuts virtually indestructible.
Two types for you to choose: hex button head cap screws nuts and hex Socket head cap screws and nuts, The most commonly used in the mechanical industry, with excellent structure and high strength. Generally used for fastening parts with counterbores.
Made of high quality stainless steel and 12.9 Grade Alloy Steel (Raw material). They have superior High hardness, not easy to fracture feature. High Hardness; Premium material; Corrosion Resistance; Quality Product. Not only is it made from high-quality elements this kit also promotes environmental protection and is guarranted to be mercury-free and toxic-free generally making it poison-free.
Includes a variety of popular sizes of screws, nuts and washers, commonly used in machinery, furniture, car and motorcycle repair and DIY inventions.
Drive Type:Hex Socket;
Main Color: Silver.
M2：20Pcs M2 x 4mm;20Pcs M2 x 6mm;20Pcs M2 x 8mm;20Pcs M2 x 12mm;20Pcs M2 x 16mm;20Pcs M2 x 20mm;120Pcs M2 Nuts;120Pcs M2 Washers.
M3：20Pcs M3 x 4mm;20Pcs M3 x 8mm;20Pcs M3 x 12mm;20Pcs M3 x 16mm;20Pcs M3 x 20mm;20Pcs M3 x 30mm;120Pcs M3 Nuts;120Pcs M3 Washers .
M4：20Pcs M4 x 6mm;20Pcs M4 x 10mm;20Pcs M4 x 14mm;20Pcs M4 x 18mm;20Pcs M4 x 20mm;20Pcs M4 x 30mm;120Pcs M4 Nuts;120Pcs M4 Washers .
All of Screws and Nuts are packed in a durable and sturdy Box to efficiently bear the weight of the whole package. In order to avoid the screws being scattered or lost during use, we specially package for each different type of screws for your convenience and storage.