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Miller .312-18 x 0.50 Hex Washer Head Tap-R Screw

$4.96/EA $3.49/1 PER EA only $3.49/EASave 30%

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OVERVIEW

Miller Electric 264570 Hex Washer Head Screw

Keep your welder in top fighting shape with the Miller 264570 Screw. When you are out in the field or working hard in the shop, the last thing you need is a rattling machine or a loose panel causing unnecessary noise and vibration. This genuine Miller replacement part is the exact hardware specified for your equipment, ensuring a perfect fit every time. Measuring 0.50 inches in length with a .312-18 thread pitch, this screw is commonly used to secure sheet metal, internal brackets, and other vital components within Miller power sources.

This isn't just a standard hardware store bolt. The Miller 264570 features a specialized Tap-R thread design. This means it is engineered to roll threads into the material it is driven into, creating a zero-clearance fit that locks the screw in place. This self-locking characteristic is crucial for welding machines that generate vibration during operation. The Hex Washer Head allows for high-torque driving with a standard socket or wrench, while the built-in washer flange protects the surface of your machine from damage during installation. The added annular ring feature provides extra grip, ensuring the screw stays put even under tough conditions.

Don't compromise your equipment's performance with mismatched hardware. Using the correct screw prevents damage to threaded holes and ensures that grounds and mechanical connections remain solid. Whether you are replacing a lost screw after a repair or swapping out a stripped fastener, the Miller 264570 is the reliable choice for professional welders. It is compatible with a wide range of Miller machines—always check your owner's manual or parts breakdown to verify compatibility with your specific unit. Invest in genuine Miller parts to extend the lifespan of your welder and maintain its resale value.

Additional Information
Brand:Miller
Packaging Description:1-per-ea
Thread Size:0.312-18 (5/16-18)
Length:0.5 in
Head Type:Hex Washer Head
Thread Type:Tap-R (Thread Rolling)
Material:Steel

INCLUDED

  • (1) Screw, .312-18 x .50 Hex Washer Head Tap-R

APPLICATIONS

  • Securing chassis panels on Miller welding power sources
  • Mounting internal components and brackets
  • Replacement of stripped or missing hardware
  • General repair of Miller industrial equipment

FAQ

The thread size is .312-18, which corresponds to a standard 5/16-18 UNC thread.

Tap-R refers to a thread-rolling screw design. These screws form their own threads in a pilot hole or reshape existing threads, providing a tighter fit that is more resistant to vibration than standard machine screws.

You will need a hex driver, socket, or wrench sized for the hex head. Given the 5/16 (0.312) diameter, a 1/2-inch or similar standard socket is typically required, though measuring the head is recommended.

Yes, this is a genuine Miller Electric OEM part, ensuring it meets the original manufacturing specifications for your equipment.

It is not recommended. The Tap-R design and Hex Washer Head are specific to the application. A standard bolt may not provide the same vibration resistance or surface bearing area.

You should consult the parts breakdown manual for your specific Miller welder model and serial number to verify the part number 264570 is listed.

The screw has a length of 0.50 inches (1/2 inch).

Yes, it is a Hex Washer Head (HEXWHD) screw, meaning the washer is built integrally into the head of the screw.
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