L. Shick (Thermo Fisher Scientific Rockwood, USA), Brian King (Thermo Fisher Scientific, Runcorn, UK) Technical Note 20537 Key Words Screw thread chromatography vials, Target DP 9 mm screw thread closures, evaporation, Fluorocarbon Free, PTFE Free, 2 mL Storage Vial Closure. Goal New Thermo Scientific National Target DP® 9 mm screw thread