Description. HPLC Vials, 9mm Wide Mouth,box of 100, Thread, NEW. 9mm screw thread caps, septa, and vials are designed especially for use with Aijiren’s and other rotating or robotic arm samplers 2ml, 12 X 32mm vials are manufactured of Clear USP Type 1 expansion 33 borosilicate glass and include a write-in patch for sample identification