Headspace Crimp Vials, Caps, Kits | SHIMADZU EUROPA. Headspace Crimp Vials, Caps, Kits ; Bottom, round ; Dimension [mm], 46.0 x 22.5 ; Content · 100 pcs. / pack ; Cap, Septum ; 1, 961-10030-04 18mm Headspace Vials & Closures - Thermo Fisher. Unlike crimp cap vials, Thermo Scientific™ National 18mm Screw Top Headspace Vials require no tools