250339 - Miller .250 x .750 Hex Washer Head Hi-Low Screw (Pack of 12)

Genuine Miller Replacement Hardware

Maintain the structural integrity and professional appearance of your Miller welding equipment with the Miller 250339 Screw. This genuine OEM replacement part is designed specifically for Miller machines, ensuring a perfect fit and reliable performance. Sold in a convenient package of 12, this set allows you to replace multiple worn, stripped, or lost fasteners during maintenance or repair procedures.

Specialized Hi-Low Thread Design

The Miller 250339 is not a standard hardware store screw. It features a specialized Hi-Low thread pattern. This design utilizes a double lead thread where one thread is high and the other is low. This configuration is engineered specifically for fastening into plastics, nylon, and composite materials often found in welding machine cases and bezels. The high thread provides a deep cut into the material for superior pull-out strength, while the low thread provides stability. This design minimizes the risk of cracking plastic bosses and stripping the material, which is a common issue when using incorrect standard screws.

Durable Construction

Featuring a Hex Washer Head (HEXWHD), these screws are easy to drive with a standard nut driver or socket, providing excellent torque transfer without cam-out. The integrated washer face increases the bearing surface, distributing the clamping load over a wider area to prevent damage to the surface of your machine. The screws are plated to resist corrosion and rust, ensuring they remain serviceable even in the harsh environments typical of welding shops and industrial sites.

Application and Fitment

These screws are typically used to secure outer panels, control faceplates, and internal plastic components within Miller power sources and wire feeders. Using the correct size (.250 x .750) and thread type is crucial for keeping your machine tight and vibration-free. Trust only genuine Miller parts from Josef Gas to keep your equipment running at factory specifications.