Metal safety screw connection straight USDR-M, IP 40 suitable for metal protection hoses SPR-CU-AS metric internal thread, including inner sleeve, brass pressure ring (EMC) and O-ring, housing with hexagon wrench flat, rotatable Material: nickel-plated brass Temperature range: -40°C ... +250°C Properties: high dust and liquid protection / force-locking connection of hose and screw connection / perfect grounding / covering of hose ends / vibration and tensile strength