Śruba cylindryczna 3.5 X 25 De Dietrich 721681400

The Cylindrical Screw 3.5 X 25 is a precision fastener commonly used in boiler and burner assemblies. Its cylindrical head and standard threading make it suitable for securing components in heating equipment where a flush finish is required. This screw is a reliable choice for maintenance and repair tasks on gas burner parts and other heating system elements.