2.10-425 thread autosampler vial with matched PP Screw Seals ND10, PTFE/rubber septa & Micro-Insert. Features . 1) 10-425 screw Thread ND10 vials(11.6*32mm) for GC and HPLC. 2) Wide-opening vials provide an increased target area for easier sample preparation and to reduce the chance of bent or broken needles during sampling