Suleve MXCH8 1080Pcs M2 M3 M4 Hex Socket Cap Head Screw Carbon Steel 12.9 Grade Bolt Nut Assortment Kit 4-30mm

- With 4, 6,  8, 10, 12, 14, 16, 18, 20, 30mm lengths for option, choose the appropriate length you need.

- Made of carbon steel, extremely high hardness, makes them good at resisting abrasion and retaining shape. They can withstand significant force before deforming.

- Black appearance, dark color will fit well in different occasions.

- Socket cap screws are commonly used in machine parts, die fixturing, and clamping. The socket head enables driving where there is not sufficient space for wrenches or sockets.

- Widely used for industry, equipment, quadcopter, DIY crafts, home repairing and so on.