Screw Couplings/Modular Trailers Interchange: Voswinkel/Stauff RH Occlusion: flat face Locking: screw Material: steel Finishing: Zn-Ni Threads: BSP-METRICS Standard seals: NBR and PU Working temperature: -13°F+212°F Working pressure: 6,090 PSI Connection under residual pressure: allowed Group Sizes Offered: 2-8