Screw Neck Glass Vial

A screw type glass vial is a small container made of glass that has a threaded opening. This design allows for a cap to be screwed onto the vial, creating a secure seal. These vials are typically made of Type 1 borosilicate glass, which is known for its low metal content and chemical resistance123. They come in various sizes, from 2ml to 250ml4, and can be either clear or amber3. Some specific types include the 20ml Headspace GC Vials5, and the 2ml Screw Top Vials3. These vials are used in a variety of applications, including laboratory use, sampling, and manufacturer use12. They are ideal for storing samples because they can protect the sample from destabilizing or leaching3.