Finger-Tight Nut
By Restek
Rapidly tighten without wrenches; avoid stripped threads. Two versions available, both can be used with 0.25, 0.32, or 0.53mm ID columns.
Cat.no. 226-21311 is similar to Agilent part # 5020-8293 and 5020-8292, except that the Restek nut can be used with Vespel® ferrules. Cat.no. 226-21312 is for use with standard ferrules.