high quality 1.5ml screw hplc vials and caps for hplc 1.5mL 10-425 Screw Neck Vial ND10 1.5mL Screw Neck Vial, 10-425 Thread, 11.6*32mm PTFE/Silicone Septa, 10mm Black Screw Polypropylene Cap, 7mm Centre Hole 250uL Micro-Insert with Mandrel Interior & Polymer Feet, 29*5.7mm