Screw cap are available in 8-425 screw cap, 9mm screw cap, 10-425 cap, 13-425 cap and 24-400 cap. 8-425 screw cap for HPLC vial Browse 2ml 10mm autosampler vials and vial inserts in various sizes and closures with and without septa, including snap, screw, or crimp top vial closure options.aijiren is the leading supplier of 2ml 10mm autosampler vials since 2007.