500Pcs M3 M4 M5 Black Carbon Steel Hexagon Cup Button Head Screw Nuts Assortment Set
Material: Carbon Steel
Screw Drive Type: Hex Socket
Screw Head Type: Cup Head
1. Various diameters and lengths, completely diversified assortment, meet your different application.
2. Made of carbon steel, extremely high hardness, makes them good at resisting abrasion and retaining shape. They can withstand significant force before deforming.
3. Black appearance, dark color will fit well in different occasions.
4. Used widely in the home and office appliance, communication equipment, ship assembly and other machinery industry.
5. Comes with a delicate plastic organizer box for storage, also suitable for collecting your small accessories.