138253 - Miller 1/4-20 x 0.37 Hex Washer Head Locking Screw

Genuine Miller 138253 Replacement Screw

Maintain the structural integrity and safety of your Miller welding equipment with the genuine Miller 138253 Screw. This specialized fastener is designed to meet the exact engineering specifications of Miller Electric power sources and wire feeders. When repairing industrial machinery, using the correct hardware is critical; generic screws often lack the specific tensile strength, coating, or locking features required for the harsh environments where welders operate.

The Miller 138253 is a .250-20 (1/4-20) thread screw with a length of 0.37 inches. It features a Hex Washer Head design, which integrates a washer directly into the screw head. This design provides a larger bearing surface area, protecting the mating material from damage while allowing for higher torque application during installation. Crucially, this screw includes a serrated locking face on the underside of the washer. These serrations bite into the surface material, creating a mechanical lock that resists loosening caused by the constant vibration of transformers, fans, and wire drive motors found in welding equipment.

Constructed from high-quality steel and finished with a durable plating, this screw offers resistance to corrosion and rust, ensuring a long service life even in humid or shop environments. Whether you are replacing a lost chassis screw, securing a side panel, or performing internal maintenance on a Miller machine, this OEM part ensures a perfect fit and reliable performance. Trust Josef Gas for your authentic Miller Electric repair parts and accessories.