M5‑0.80 x 45mm Button Socket Cap Screw – Class 10.9, Zinc‑Baked (Cr+3), ISO 7380

Designed for high‑strength metric fastening applications requiring extended length and enhanced corrosion protection, this M5‑0.80 x 45mm button socket cap screw is manufactured from heat‑treated Class 10.9 alloy steel and produced to ISO 7380 standards. The 45mm length provides deep thread engagement for secure fastening through thicker or multi‑component assemblies, ensuring reliable load performance. Its smooth, low‑profile button head delivers a clean, finished appearance in exposed or clearance‑restricted installations, while the internal hex drive allows precise torque control. Finished with a zinc‑baked coating and trivalent chromium (Cr+3) passivation, it offers improved corrosion resistance and reduced risk of hydrogen embrittlement—ideal for industrial, automotive, and mechanical applications.