Insert for 2 mL standard opening vial, 4.6 mm I.D. volume 0.05 mL, conical clear glass, bottom spring, O.D. × H 4 mm × 25 mm, pkg of 100 ea: 27401: Screw cap black polypropylene hole cap, large, opening in top of cap, no septum, pkg of 100 ea, thread for 8-425: 27406: Vials, screw top, amber glass (vial only)