May 26, 2021 · Certified Kits, screw thread vials, 12 x 32 mm, 9 mm thread, unassembled, pkg of 100 volume 2 mL, clear glass vial, PTFE/silicone septum (bonded to cap) | Sigma-Aldrich 29378-U Supelco Certified Kits, screw thread vials, 12 x 32 mm, 9 mm thread, unassembled, pkg of 100 volume 2 mL, clear glass vial, PTFE/silicone septum (bonded to cap)