GN 708.1-M6-55-A-ST is a steel stud type retaining knob produced by Elesa & Ganter. It has a threaded M6 stud, a steel external thread element, and a 55mm diameter diameter chrome-plated handle. The material of the knob is steel, and it has a environmental protection rating of IP67. The steel stud type knob is designed to be used as a handle or knob for clamping shafts, levers, flanges, etc.