HPLC and GC Vials, Caps, Septas and Inserts Guide 2mL HPLC Clear Vials, Screw . Part 5 Autosamper Vial Product List (Bestsellers) 1. Screw 8-425 (8mm, N8) HPLC Vial, Cap, Septa an Application: Suitable for 8-425, 9mm, 10-425, 11mm snap vials Material