Thermo Fisher, 35050458, Nuts for Capillary GC Columns Connections

Thermo Scientific Stainless Steel GC Capillary Column Retaining Nuts secure compatible capillary columns and ferrules at gas chromatograph inlets and detectors. Each hexagonal nut has a 1/4-inch M6 connection and is designed for the mechanical retention required to establish a leak-tight carrier-gas path. The stainless steel construction is suitable for routine instrument maintenance when connecting capillary tubing to compatible fittings. This pack contains five retaining nuts and does not include the ferrules or columns. The specified compatibility includes TRACE 1300 Series gas chromatographs with SSL and several detector configurations, together with suitable Agilent GC connections. Select the appropriate ferrule material and bore for the capillary outside diameter and instrument interface; the nut alone does not create an effective seal. Tighten to the equipment manufacturer's service procedure without overtightening, which may damage the ferrule or column end. After installation, perform a carrier-gas leak check and verify stable pressure before analytical operation.