Screw Thread: Dimensions: 12x32mm, 9mm Threads: 7.0mm Opening Useful in HPLC and GC, these kits are compatible with most aijiren, Beckman, CTC, Gilson, Shimadzu, Thermo, Varian & aijiren Technology autosamplers including Alliance & Acquity 9502S-1CP 100/pack Easy Purchase Pack 2ml clear glass vials & blue screw caps w/ silicone/ptfe, bonded septa. 9502S