Trajan (SGE) SilTite FingerTite female nut, 5 pc/pak

Ferrules for 0.1-0.25 mm ID columns have 0.4 mm holes. Ferrules for 0.32 mm ID columns have 0.5 mm holes. Ferrules for 0.53 mm ID columns have 0.8 mm holes. Equivalent to Restek RE21040 (pk of 2)