ND8 Crimp Neck Vials and Caps. Borosilicate glass - 1st hydrolytic class. Description0.7ml 0.7ml 0.6ml 0.6ml 1.2ml Crimp Neck Vial Crimp Neck Vial Crimp Neck Vial Crimp Neck Vial Crimp Neck Vial 40 x 7mm 40 x 7mm 40 x 7mm 40 x 7mm 40 x 8.2mm clear glass amber glass clear glass amber glass clear glass at bottom at bottom conical