There are high performance liquid chromatography & gas chromatography consumables such as HPLC/GC screw vials with matched caps for laboratories. Here is the list of some screw vials: 9-425 Vials , 8-425 Vials , 10-425 Vials , 13-425 Vials , 10ml GC Headspace Vials , 20ml GC Headspace Vials etc.