M8‑1.25 x 18mm Button Socket Cap Screw – Class 10.9, Black Oxide, ISO 7380

Designed for metric fastening applications that require added length and high tensile strength, this M8‑1.25 x 18mm button socket cap screw is manufactured from heat‑treated Class 10.9 alloy steel and produced to ISO 7380 standards. The 18mm length provides increased thread engagement for secure clamping in mechanical and machinery assemblies, while the low‑profile button head offers a smooth, finished appearance in exposed or clearance‑restricted installations. Featuring an internal hex drive for controlled torque application, it is finished with a thermal black oxide coating that reduces glare, provides mild corrosion resistance, and delivers a durable technical finish suitable for industrial use.