M6‑1.00 x 55mm Button Socket Cap Screw – Class 10.9, Black Oxide, ISO 7380

Designed for metric fastening applications that require extended reach and high mechanical strength, this M6‑1.00 x 55mm button socket cap screw is manufactured from heat‑treated Class 10.9 alloy steel and produced to ISO 7380 standards. The 55mm length allows for deep thread engagement through thick or multi‑layer assemblies, providing secure clamping and long‑term joint stability. Its smooth, low‑profile button head minimizes snagging while maintaining a clean, finished appearance, and the internal hex drive enables precise torque application. Finished with a thermal black oxide coating, it offers reduced glare, mild corrosion resistance, and a durable technical finish suitable for industrial and precision mechanical applications.