The Series 5040S Straight Bulkhead Heavy Duty Male DIN x Male DIN Union hydraulic adapters, made of stainless steel, are designed for secure and reliable tube connections in hydraulic systems. These fittings feature a 24° tapered throat inside the male threads, providing a firm connection when the tube nut is tightened over the metric threads. As the nut is tightened, it forces a ferrule or cutting ring to grip the tube, creating a leak-proof seal. These fittings are ideal for heavy-duty applications, with a pressure class rating of -S for heavy-duty use. The DIN standard ensures compatibility with other components, including Kobelco fittings, and is often used in systems where space is limited, as the fitting efficiently secures tubes in tight spaces. With their durable stainless steel construction, these adapters provide a reliable and long-lasting solution for mobile and industrial applications.