273794 - Miller .250-20 x 1.38 Socket Head Cap Screw Grade 8

Genuine Miller 273794 Socket Head Cap Screw

Maintaining the structural integrity and operational safety of industrial welding equipment requires the use of high-quality fasteners that meet specific engineering standards. The Miller 273794 is a premium Socket Head Cap Screw designed specifically for Miller Electric machinery. This fastener features a .250-20 (1/4"-20) thread pitch and a length of 1.38 inches, making it a critical component for specific assembly points within your welding power source or wire feeder. Unlike standard hardware store bolts, this screw is manufactured to Grade 8 specifications, offering superior tensile strength and durability required for heavy-duty industrial environments.

The Grade 8 rating of this screw indicates it is made from a medium carbon alloy steel that has been quenched and tempered, providing a high strength-to-weight ratio. This is essential for preventing shearing or stripping under the vibration and thermal stresses often encountered in welding operations. The "Plain" finish (Pln) denotes that the screw does not have an added coating like zinc or galvanization; this is often intentional in precision machinery to ensure exact thread tolerances and to prevent any risk of hydrogen embrittlement or coating flaking that could contaminate sensitive internal components.

The socket head design, driven by a hex key (Allen wrench), allows for higher torque application compared to standard Phillips or slotted screws. It also enables the screw to be installed in tight, recessed spaces where a traditional wrench might not fit. When repairing or maintaining your Miller equipment, using genuine OEM parts like the 273794 ensures that the fitment is exact and the material properties match the original engineering design. Substituting with lower-grade hardware can lead to premature failure, loosened components, or damage to the machine chassis. Trust Josef Gas for authentic Miller replacement parts to keep your equipment running at peak performance.