M10‑1.50 x 40mm Button Socket Cap Screw – Class 10.9, Black Oxide, ISO 7380

Designed for high‑strength metric fastening applications requiring additional length and reliable load performance, this M10‑1.50 x 40mm button socket cap screw is manufactured from heat‑treated Class 10.9 alloy steel and produced to ISO 7380 standards. The 40mm length provides deep thread engagement for secure clamping in machinery and structural assemblies, while the low‑profile button head offers a smooth, finished appearance and reduced snagging in exposed installations. Featuring an internal hex drive for controlled torque application, it is finished with a thermal black oxide coating that reduces glare, offers mild corrosion resistance, and delivers a durable technical finish suitable for industrial and mechanical use.