M3‑0.50 x 25mm Button Socket Cap Screw – Class 10.9, Zinc‑Baked (Cr+3), ISO 7380

Designed for high‑strength metric fastening with extended length requirements, this M3‑0.50 x 25mm button socket cap screw is manufactured from heat‑treated Class 10.9 alloy steel and produced to ISO 7380 standards. The 25mm length provides deep thread engagement for secure fastening in thicker or multi‑layer assemblies, while the smooth, low‑profile button head delivers a clean, professional appearance in clearance‑restricted or visible applications. Featuring an internal hex drive for precise torque control, it is finished with a zinc‑baked coating and trivalent chromium (Cr+3) passivation to improve corrosion resistance and reduce the risk of hydrogen embrittlement—ideal for mechanical, automotive, and industrial use.