M2 M2.5 M3 M4 M5 M6 M8 Black Socket Cap Head Screws Grade 12.9 Alloy Steel Allen Bolt DIN 912 - M2x0.4mm / 4mm / Black

1.Ultra-High Strength Grade 12.9 Alloy Steel
"Engineered from Grade 12.9 alloy steel, these socket cap head screws deliver unmatched tensile strength and fatigue resistance, ideal for heavy-duty machinery, automotive systems, and critical structural applications requiring extreme load-bearing capacity."

2.Sleek Black Oxide Finish for Durability
"Featuring a corrosion-resistant black oxide coating, these screws withstand harsh environments, reducing wear and oxidation while maintaining a sleek, professional appearance for both industrial and aesthetic-focused projects."

3.Precision Socket Cap Head Design (DIN 912)
"Designed to DIN 912 standards, the socket cap head ensures seamless compatibility with hex keys, providing secure torque transmission, reduced stripping risk, and flush-mounting capabilities in confined spaces."

4.Versatile Size Range (M2-M8)
"Available in sizes from M2 to M8, these Allen bolts adapt effortlessly to diverse tasks—from precision electronics assembly to robust construction equipment—ensuring a perfect fit for every fastening challenge."

5.Industrial-Grade Reliability & Compliance
"Certified to meet rigorous DIN 912 specifications, these screws guarantee dimensional accuracy, vibration resistance, and long-term performance, trusted by engineers and manufacturers worldwide for mission-critical applications."