1.8-425 Standard autosampler vials(11.6*32mm) for GC and HPLC. 2.Available with black or white screw caps with 8-425 thread. 3.Available as closed top screw seals or with centre hole. 4.Vials are manufactured of Clear or Amber borosilicate glass . Features . 1) 8mm screw vials can be used on all common autosampler