M3‑0.50 x 16mm Button Socket Cap Screw – Class 12.9, Zinc Plated (Cr+3), ISO 7380

Designed for high‑load metric fastening applications, this M3‑0.50 x 16mm button socket cap screw is manufactured from heat‑treated Class 12.9 alloy steel and produced in accordance with ISO 7380 standards. The extended length provides increased thread engagement for secure fastening through thicker materials, while the low‑profile button head allows for use in tight‑clearance or visible assemblies. Finished with a mechanical zinc coating and trivalent chromium (Cr+3) passivation, it delivers enhanced corrosion resistance and a consistent, professional appearance for mechanical, automotive, and industrial use.