M-3X12، المسمار ثلاثي الفصوص من De Dietrich JJJ030006028

The tri-lobular screw M-3x12 is a specialized fastener used in heating equipment to secure components with enhanced thread engagement. Its unique trilobular shape reduces the risk of loosening from vibration, making it ideal for burner spare parts and boiler assemblies. With M3 thread and 12mm length, this screw is commonly found in gas burner parts and other heating system components, providing reliable fastening during boiler maintenance and repair.