M3‑0.50 x 20mm Button Socket Cap Screw – Class 12.9, Zinc Plated (Cr+3), ISO 7380

Engineered for demanding fastening applications, this M3‑0.50 x 20mm button socket cap screw is manufactured from high‑strength Class 12.9 alloy steel and conforms to ISO 7380 standards. The longer length allows for deeper thread engagement in multi‑layer or thicker assemblies, while the low‑profile button head provides a sleek solution where clearance or appearance is critical. Finished with a mechanical zinc coating and trivalent chromium (Cr+3) passivation, it offers added corrosion resistance and a durable, uniform finish for mechanical, automotive, and industrial applications.