Standard Opening 9-425 Screw Thread Vials. Part No. Unit Description. 2ML-9-V1001 100pcs/pk 2mL, Clear Glass, 12x32mm, Flat Base, 9-425 Screw Thread Vial. 2ML-9-V1002 100pcs/pk 2mL, Clear Glass, 12x32mm, Flat Base, 9-425 Screw Thread Vial, With label. 2ML-9-V1003 100pcs/pk 2mL, Amber Glass, 12x32mm, Flat Base, 9-425 Screw Thread Vial