2022/10/21 · Screw cap vials ptfe - Sigma-AldrichResults 1 - 30 of 137 black polypropylene hole cap, thread for 15-425, PTFE/silicone, septum thickness 1.5 mm, for use with 7 mL vial, pkg of 2ml Screw thread 9mm, ND9 Vials. Glass insert 9mm screw thread caps, septa, and