1.5ml 9mm Thread Vials, ND9 The Universal Autosampler Vial It is dimensionally equivalent to 11mm crimp top vials and 10-425 screw vials. The 9mm screw vials can be used in any autosampler which used 11mm crimp top vials and 10-425 screw vials. Compared to 11mm crimp top type, the 9mm screw one can be much applied as hand removing convenient.