Home » News » 4ml 13mm Screw Vials » 4ml Routine Sample Vial for Thermo Fisher Technical Grade Thermo Scientific 2019/2021 Chromatography Consumables Mar 20, 2020 · National 4ml screw thread vials 4mL, 15x45mm screw thread vials and inserts • 13-425 thread finish • I.D. vials feature a write-on patch with graduation for convenient sample identification