Screw Thread Autosampler Vials (1.5-2 mL), standard opening . Product # Description. Volume. Fitting. O.D. × H × I.D. Material. Pkg Qty. Add to Cart. Z291706: Standard autosampler vials with cap and septa, 12 x 32 mm, 8-425 thread volume 2 mL, pre-assembled convenience pack, clear glass vial, PTFE/silicone septa . Aijiren Spot