KSV-PK-4 Terminal plug sold in multiples of 10 only

Terminal Plug Ksv-Pk-4 Nominal Size=3,4 Mm, Operating Medium=Compressed Air In Accordance with Iso8573-1:2010 [7:-:-], Note On Operating and Pilot Medium=Lubricated Operation Possible, Corrosion Resistance Classification Crc=1 - Low Corrosion Stress, Pneumatic Connection=For Tubing Outside Diameter 6 Mm