Sep 11, 2020 We stock chromatography vials and caps for GC / HPLC, headspace, storage of liquid N18 - Screw neck vials and magnetic screw closures ... Screw Top 8mm Amber Glass 1.5mL HPLC Autosampler Vials. 1.5mL Amber Screw Neck Vial, 8-425 Thread, 11.6x32mm Economy TYPE, and make it easier to attach or remove the closure making sample ...