Rondella di bloccaggio con dentatura esterna m8 zn De Dietrich 96140130

For larger fasteners in boiler spare parts and burner assemblies, the M8 external tooth lock washer with zinc plating delivers dependable vibration resistance. Its external teeth dig into the nut and workpiece to prevent loosening caused by thermal cycling or mechanical vibration common in heating equipment. This washer is a straightforward choice for securing components in gas burner parts and boiler maintenance tasks where a positive lock is required without adding significant height. The zinc finish provides basic protection against moisture and mild chemicals, suitable for typical indoor boiler environments. When you need to ensure that critical fasteners remain tight in your heating system, this lock washer offers a cost-effective and proven solution for your repair or assembly needs.