Thermo Scientific™ 11mm Autosampler Inserts. Made of clear glass or polypropylene, these 11mm inserts are available in a variety of configurations with usable volumes from 250μL to 450μL. 10. Restek™ Glass Vial Inserts. Specially designed for 2 mL, 11 mm crimp top and 2 mL, 9 mm short cap, screw thread vials. 11.