Thermo Fisher crimp seal vial distributor- Aijiren Crimp Vials. 8-425 Screw Top HPLC Vials for THERMO FISHER. Screw vials is the most used in 2ml Autosampler vials.It is suitable for THERMO FISHER and other rotary or robotic arm samplers. 40% larger than standard narrow opening vial, prevents syringe problems. Get price +.