10 mm Wide Opening Screw Top Vials from aijiren Tech. Select from these high-quality glass vials designed to fit a variety of autosamplers. aijiren Tech 10mm Wide Opening Screw Thread Vials are manufactured from clear (Type 1 Class A) or 51A amber (Type 1, Class B) and have a 10-425 thread finish. Skip to the end of the images gallery.