Écrou long 6kt 7x7 m4 De Dietrich 7893300

This long nut with a 6kt (hexagon) shape, 7x7 mm across flats, and M4 thread is used to extend threaded connections or create adjustable linkages in boiler and burner assemblies. It allows for precise spacing and secure fastening of components such as brackets or covers. The steel construction provides strength and reliability in mechanical joints within heating equipment.