108941 - Miller 108941 Screw 1/4-20 x 1.00 Hex Washer Head Grade 5

Genuine Miller 108941 Replacement Hardware

The Miller 108941 is a high-quality replacement screw designed specifically for the maintenance and repair of Miller welding power sources and industrial equipment. As an Original Equipment Manufacturer (OEM) part, this fastener guarantees the precise dimensional tolerances and material specifications required to maintain the structural integrity of your machine. Using non-standard hardware in industrial equipment can lead to fitment issues or premature failure due to vibration, making genuine Miller parts the preferred choice for professional technicians and maintenance personnel.

Technical Specifications and Design

This fastener features a 1/4-20 UNC thread pitch, a standard coarse thread widely used in North American manufacturing. The screw has a length of 1.00 inch, making it suitable for securing panels, internal components, or chassis elements where a secure, medium-length fastener is required. The head design is a Hex Washer Head (HEXWHD) with a washer diameter of 0.61 inches. This integrated washer serves a critical function: it distributes the clamping force over a larger surface area than a standard hex head, preventing damage to the mating surface and reducing the likelihood of the screw loosening under the high-vibration conditions often found in welding environments.

Material Grade and Durability

Constructed from Grade 5 steel, this screw offers superior mechanical properties compared to standard Grade 2 hardware. Grade 5 fasteners are made from medium carbon steel that is quenched and tempered, providing a minimum yield strength of approximately 85,000 to 92,000 psi. This added strength is essential for structural components on heavy welding machines. Additionally, the screw features a plated finish (PLD), typically zinc, which offers a layer of corrosion resistance. This protection is vital for equipment that may be exposed to shop humidity, fumes, or varying environmental conditions, ensuring the fastener remains removable during future service intervals.