PerkinElmer. Vial inserts can be used with any of our 9, 10 or 11 mm vials for applications Screw neck vial, N 8, 11.6 x32.0 mm, 1.5 mL, flat bottom, clear. Screw neck vials N 8 with small opening, 8-425 thread. Different 5 mm inserts and a range of closures with various liner materials are available. Vials & Closures Catalogue - Postnova