M4*50 12.9 grade semi-round head internal hexagonal screw

Button Head Socket Cap Screw M4×50, Grade 12.9

Looking for a strong and reliable fastener for hobby builds, DIY projects, RC models, 3D printer assemblies, or workshop repairs? This M4×50 button head socket cap screw is a practical choice wherever you need high strength, a neat low-profile head, and easy tightening with an Allen key.

Made from Grade 12.9 steel, this screw is designed for demanding applications where durability and secure fastening matter. The button head offers a clean finish, while the internal hex socket makes installation quick and convenient, even in compact spaces.

• Thread size: M4
• Length: 50 mm
• Head type: Button head
• Drive type: Internal hex socket
• Material grade: Steel, Grade 12.9
• Thread diameter: 4 mm
• Best for: hobby projects, mechanical assemblies, DIY repairs, robotics, and model building

Package includes:

• 50 pcs x M4×50 button head socket cap screw