M4‑0.70 x 16mm Button Socket Cap Screw – Class 10.9, Black Oxide, ISO 7380

Designed for metric fastening applications that require additional length and dependable strength, this M4‑0.70 x 16mm button socket cap screw is manufactured from Class 10.9 alloy steel and produced to ISO 7380 standards. The extended 16mm length provides deeper thread engagement for improved clamping in thicker or multi‑layer assemblies. Its smooth, low‑profile button head helps maintain a clean, finished appearance in clearance‑restricted or visible installations, while the internal hex drive allows precise torque application. Finished with a thermal black oxide coating, it offers reduced glare, mild corrosion resistance, and a consistent technical finish suitable for machinery, tooling, and precision mechanical assemblies.