Premium Quality: Made of 12.9 grade alloy steel with black oxide finish for high strength, corrosion resistance, and wear resistance.
Full Specifications: Contains 8 common screw sizes (M4x6mm, M4x8mm, M4x10mm, M4x12mm, M4x16mm, M4x20mm, M4x25mm, M4x30mm), supplied in different quantities to accommodate various requirements.
Easy to Use: Hex socket head design allows for easy tightening with a hex wrench.
Versatile: Suitable for various applications, including 3D printing, woodworking, machinery repair, DIY projects, and more.
Convenient Storage: Comes with a plastic storage box for easy storage and organization.