Certified QSertVial™ (vial with fused-in insert) kit, screw thread, 12 x 32 mm, 0.3 mL, pkg of 100 clear glass vial, PTFE/silicone septum (bonded), thread for 9 mm; find Supelco-29391U MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich