262438 - Miller M10-1.5 x 16mm Socket Button Head Screw (Class 8.8)

Technical Specifications and Application

The Miller 262438 is a metric machine screw engineered for specific fastening applications within Miller welding power sources and wire feeders. Defined as an M10-1.5X 16 Soc Btn Hs Pln 8.8, this component is a high-strength fastener designed to withstand the rigors of industrial environments. The "Soc Btn Hs" designation refers to its Socket Button Head style, which features a rounded, low-profile head driven by an internal hex key (Allen wrench). This head style is particularly useful in applications where a protruding hex head would be obstructive or aesthetically undesirable, such as on external case panels or tight internal clearances.

The material specification, Class 8.8, indicates a medium carbon steel that has been quenched and tempered. This provides a minimum tensile strength of approximately 800 MPa and a yield strength of 640 MPa. This strength is essential for maintaining clamping force in equipment that may be subject to thermal expansion and mechanical vibration during welding operations. The "Pln" (Plain) finish suggests the screw relies on its material properties and perhaps a light oil coating, rather than a thick zinc or galvanized coating, ensuring precise thread engagement.

Proper maintenance of your welding equipment includes replacing stripped, corroded, or missing hardware. Using the correct M10-1.5 x 16mm screw ensures that threads in the mating part—whether a nut or a tapped hole in the chassis—are not damaged by incorrect thread pitches. The 16mm length is precise; deviations can lead to bottoming out in blind holes or insufficient grip. This OEM part is the direct replacement for the original hardware found on various Miller units.

Welders Supply provides this data to assist technicians and maintenance personnel in identifying the exact specifications of the hardware required for their repairs. Always use the appropriate metric hex key to tighten this fastener to the manufacturer's recommended torque settings to prevent stripping the head or the mating threads.