079558 - Miller 1/2-13 x 4 Inch Hex Head Screw Full Thread

Genuine Miller Replacement Hardware

The Miller 079558 is a high-quality hex head screw designed specifically for Miller welding equipment and industrial machinery. As a genuine OEM (Original Equipment Manufacturer) part, this fastener is engineered to meet the precise mechanical specifications required by Miller's rigorous engineering standards. Using non-OEM hardware in high-performance welding machines can lead to fitment issues, compromised structural integrity, or premature failure due to mismatched tensile strengths. This screw ensures that your equipment remains assembled exactly as the factory intended.

Technical Specifications

This fastener features a .500-13 (1/2-13) UNC thread pitch, a standard coarse thread widely used in heavy industrial applications for its robust holding power and resistance to cross-threading. The screw measures 4.00 inches in length and is distinguished by its "Full Thread" design. Unlike standard hex cap screws which may have a smooth shank (grip length) near the head, a fully threaded screw—often referred to as a tap bolt—allows for the nut or threaded mating part to be positioned anywhere along the shaft. This provides maximum versatility for adjustments and clamping applications within the machine's assembly.

Material and Durability

Constructed from plain steel with a protective plating, this screw is built to withstand the rigors of industrial environments. The plating process provides a layer of corrosion resistance, protecting the underlying steel from rust and oxidation that can occur in humid or shop environments. The hex head design allows for the application of significant torque using standard wrenches or sockets, ensuring a tight and secure bond that resists loosening from the vibrations common in welding operations. Whether you are performing routine maintenance or a critical repair, relying on the Miller 079558 screw guarantees that the mechanical connections in your welder are secure and reliable.