Oil burner spray nozzle 9/16 External thread connection suitable for 0.4 mm boilers. Note: This product page only sells 0.4 mm sizes. If you need other sizes/colors, please ask in Questions and Answers. Description: Oil burner spray nozzle, brass body and stainless steel filter mesh, precision and high performance. Reduces the possibility of oil residue buildup and scale. The oil burner nozzle is an oil spray nozzle, spray angle: 30, 45, 60, 80 degrees. Suitable for oil-fired furnaces, boilers, water heaters, evaporation, humidification, and cooling. Produces a spray that distributes droplets fairly evenly, providing smooth ignition and efficient combustion. Specifications: Material: Brass. Size: 3 x 1 cm / 1.18 x 0.39 inches. Connector size: 9/16 inch. External thread hole diameter: 0.2 mm, 0.3 mm, 0.4 mm, 0.6 mm, 0.7 mm, 0.8 mm, 1 mm, 1.2 mm, 1.5 mm. Please allow 1-3 mm error due to manual measurement; please make sure you do not mind before ordering. The order. Due to different monitor and light effects, the actual color may be slightly different from the color in the picture.