... of ISO, DIN, EN, and SAE Standard. Hydraulic Hose Fittings Metric 24 Deg. Material: carbon steel, stainless steel;Surface Treat ... , mine, building, transportation, food and other industries. METRIC MALE 24°CONE SEAT SEAL H.T .(10511)O-RING ... .T. (20511-T) No Lock Nut45° O-RING METRIC FEMALE 24° CONE SEAL H.T. (20541)45° ... (20541-T) -No Lock Nut 90° O-RING METRIC FEMALE 24° CONE SEAL H.T. (20591)90° O ...