Screw Top Vials, Caps & Septa Combine the excellent autosampler handling of a crimp cap profile with the ease of a screw cap. The screw caps and precision fit septa give a secure seal with the microvolume inserts. Universal Autosampler Vials (1000/pk) ST-09-2067Screw Top Vial, 1.5mL, 12x32mm, 9mm, Clear ST-09-2068Screw Top Vial, 1.5mL, 12x32mm