PTFE/silicone septum autosampler sample vials 8-425-Crimp Jan 15, 2020 Autosampler vials, storage vials, inserts, shell vials and vial 2,5mm Septum, 0.25mm PTFE/2.3mm Clear Silicone septa-cut to 18mm, 100p. Screw Caps For 8-425 Thread Vials - Aijiren. Screw Caps For 8-425 Thread Vials is Widely Used for Shimadzu Autosampler.