Standard opening 2ml vial inserts China-HPLC Vial Inserts 2ML ND8 Screw Neck HPLC Vial with Label. Item Code: C0000002 Description: 2mL Clear Glass 12x32mm Flat Base 8-425 Screw Thread Vial with Label. 100pcs/pk. Packing: 100 pieces/pack Product Description 2ML 8-425 Vial, with standard opening vials for GC and HPLC, is used on instruments of Shimadzu, Varian, Gilson etc.