294046 - Miller 1/4-20 x 0.37 Hex Head Screw with Conical Washer

Miller 294046 OEM Screw Specifications

The Miller 294046 is a specialized machine screw designed to meet the rigorous engineering standards of Miller Electric welding equipment. This fastener features a 1/4-20 UNC thread pitch, a standard coarse thread widely used in industrial machinery for its robust holding power. The shaft length is precision-machined to 0.37 inches (approximately 3/8 inch), ensuring it fits specific depth requirements without protruding or bottoming out in blind holes, which is critical for protecting internal electronics and wiring.

A key feature of this component is its integrated head and washer assembly. It utilizes a Hex Head design, allowing for secure tightening with standard wrenches or sockets, which is essential for achieving the necessary torque specifications during assembly or repair. Coupled with the head is a 0.75-inch diameter (0.75D) conical washer. Conical washers, often known as Belleville washers, provide a spring-like action that maintains tension on the fastener assembly. This is particularly critical in welding environments where thermal cycling and machine vibration can cause standard screws to loosen over time. The unit is constructed from steel and finished with a plating (Stl Pld) to provide essential corrosion resistance against shop humidity and environmental contaminants.

As a genuine Miller OEM part, this screw guarantees compatibility with the specific mounting points on your welder or wire feeder. Using non-OEM hardware with incorrect tensile strength or dimensional tolerances can lead to stripped threads or compromised structural integrity of the machine's chassis. This part is supplied as a single unit.