232485 - Miller #6-32 x 0.12 Knurled Set Screw

Technical Overview of the Miller 232485 Set Screw

The Miller 232485 is a precision-engineered set screw designed specifically for use within Miller Electric welding systems. As a genuine OEM component, this hardware ensures exact dimensional compatibility with the threaded bores found in Miller power sources, wire feeders, and accessory assemblies. The screw features a #6-32 Unified National Coarse (UNC) thread profile, a standard specification in industrial electronics and machinery, ensuring it mates correctly with corresponding tapped holes without damaging threads or compromising structural integrity.

This particular fastener is distinguished by its specific geometry and material properties. It has a total length of 0.12 inches, making it suitable for flush-mounting applications where protrusion must be minimized to prevent interference with moving parts or external housings. The material is plain steel (STL PLN), offering high tensile strength and durability essential for internal machine components. The absence of a thick plating layer ensures that the thread tolerances remain tight and precise, which is critical for small-diameter fasteners where coating buildup can lead to fitment issues.

A key technical feature of this set screw is the "KNRLPT" designation, which stands for Knurled Cup Point. Unlike standard cup points or flat points, a knurled cup point features a serrated ridge on the contact face of the screw. When torqued down against a shaft or mating surface, these knurls bite into the material, creating a mechanical lock. This design is specifically selected for environments subject to vibration—such as inside a running welding machine or wire feeder—to prevent the screw from backing out over time. The drive mechanism is a standard internal socket (SCH), requiring a hex key for installation, allowing for the application of significant torque relative to the screw's size.

Maintenance professionals and technicians repairing Miller equipment should verify fitment using the machine's serial number breakdown. Using non-OEM hardware in critical assemblies can lead to thread stripping, insufficient clamping force, or loosening during operation. The Miller 232485 provides the assurance of factory-spec performance and reliability.