9mm screw thread vials, caps and septa. 9mm screw thread vials and closure is dimensionally equivalent to 11mm crimp neck vials. This means that they can be used in any autosampler that uses 11mm crimp neck vials. This size can be used on almost all the new austosamplers. Especially used on Aijiren, HTA, Shimadzu, thermo, Varian and Waters etc.