Sirius 12.9 Grade Socket Head Cap Screws M4 40mm Pack of 1

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Sirius 12.9 Grade Socket Head Cap Screws M4 40mm Pack of 1

This high-strength socket head cap screw is engineered to provide exceptional clamping force and long-term durability in demanding engineering applications. Manufactured from premium alloy steel and heat-treated to grade 12.9, it offers superior tensile strength compared to standard fasteners, ensuring a secure and reliable joint in machinery, automotive, or structural assemblies. The attractive black oxide finish not only provides corrosion resistance but also gives a professional appearance suitable for visible installations.

Key features:

- Grade 12.9 alloy steel for maximum tensile strength and hardness

- M4 thread size with 40mm length for precise fit in confined spaces

- Fully