The Series 6408-H-O-SS Hollow Hex Male ORB Plugs are durable and versatile fittings designed to seal unused ORB (O-Ring Boss) ports in hydraulic and fluid power systems. Made from stainless steel, these plugs feature a hollow hex design, which allows for easy installation and removal using standard wrenches. The ORB threads ensure a secure, leak-free seal by compressing the O-ring into the chamfered surface of the mating connection. The hollow hex design also offers additional functionality, such as venting or fluid drainage. With stainless steel construction, these plugs provide excellent corrosion resistance, making them ideal for use in harsh environments and high-pressure applications. The Series 6408-H-O-SS plugs are essential for maintaining system integrity, preventing leaks, and ensuring long-lasting performance during maintenance or testing.