برغي برأس سداسي M6X20 8.8 Zn7II De Dietrich JJJ008101190

This hexagon head screw features an M6 thread with a 20 mm length and a strength class of 8.8, making it suitable for high-stress applications in boiler and burner assemblies. The zinc-plated finish (Zn7II) provides good corrosion protection, ensuring long-term reliability in heating environments. Its standard hex head allows for easy tightening with a wrench or socket, making it a versatile fastener for securing components such as flanges, brackets, or covers. Whether you are performing routine maintenance or a full system overhaul, this screw offers dependable performance.