Our Female Quick Coupling To 3/8" Female Thread is a high-quality hydraulic quick connect coupling designed for reliable performance. This female coupling fits onto BSP 1/2 inch thread and features a union type coupling for easy installation. Made from steel and zinc plated for corrosion resistance, it also includes a nitrile rubber O-ring and ball locking style. With a maximum operating temperature of +125°C and a maximum operating pressure of 250 bar, this coupling is suitable for a wide range of hydraulic applications.