Miller T-Knob 5/16-18 Thread 1-Inch Stud

Technical Specifications and Application

The Miller 222035 is a specialized T-Knob assembly designed for specific fastening applications within Miller welding systems. This component is characterized by its 1.562-inch wide plastic bar handle, which provides sufficient torque application for hand-tightening operations. The handle is molded onto a steel stud, creating a unified fastener that is both lightweight and robust.

Technically, the stud features a .312-18 thread (standard 5/16-18 UNC coarse thread), which is a common fastening standard in heavy-duty industrial equipment. The stud extends 1.000 inch from the base of the handle, providing ample reach for securing covers, wire drive assemblies, or other structural components where a blind hole or nut plate is utilized. The thread pitch is critical; utilizing the correct pitch ensures maximum holding power and vibration resistance during welding operations.

For maintenance personnel and welding technicians, replacing damaged external hardware is a routine but vital task. A broken knob can lead to loose panels, which may expose internal electronics to dust and debris or create safety hazards. This OEM part ensures that the mechanical properties—specifically the tensile strength of the stud and the shear strength of the plastic-to-metal bond—meet the original engineering requirements of the power source. Unlike generic hardware store replacements, the shoulder and seating of this knob are designed to interface correctly with Miller chassis components.

Specifications:

• Thread: .312-18 UNC (5/16-18)
• Stud Length: 1.000 Inch
• Handle Type: T-Bar (1.562 Inch Width)
• Material: Industrial Plastic / Steel Stud