M4*40 12.9 grade hexagonal cylindrical screw

Hex Socket Cap Screw M4×40, Grade 12.9 (50 pcs)

Reliable and durable M4×40 hex socket cap screws made from high-strength grade 12.9 steel. A great choice for hobby builds, DIY projects, robotics, 3D printers, RC models, and other technical assemblies where a strong and secure fastening solution matters.

• Thread size: M4
• Length: 40 mm
• Material grade: 12.9 high-strength steel
• Head type: Hex socket cap head
• Thread diameter: 4 mm
• Application: Ideal for hobby, workshop, and precision mechanical projects
• Pack size: 50 pieces

Thanks to their high strength class, these screws are well suited for demanding applications where durability and a firm hold are important. Perfect for makers and hobbyists looking for dependable fasteners for everyday builds and repairs.

Package includes:

• 50 x M4×40 hex socket cap screws