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225807 - Miller .312-24 Brass Hex Nut Replacement

Packaging: 1 PER EA
$2.36/EA $1.53/1 PER EA only $1.53/EASave 35%

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OVERVIEW

Genuine Miller 225807 Brass Hex Nut

The Miller 225807 is a genuine OEM brass nut designed specifically for Miller Electric welding equipment. Precision engineering is critical in industrial environments, and this fastener meets the exact specifications required for maintaining the integrity of your welding machine's assembly. Manufactured from high-grade brass, this nut offers superior corrosion resistance and electrical conductivity, making it ideal for internal connections where standard steel hardware might degrade or interfere with electrical paths.

This specific component features a .312-24 thread pitch (equivalent to a fine-thread 5/16-24), a 0.50-inch hex width for standard tooling, and a low-profile height of 0.18 inches. Using genuine Miller parts ensures that thread tolerances are exact, preventing cross-threading or loosening under vibration—common issues in heavy-duty welding environments. Whether used in wire drive assemblies, power source terminals, or gas connection points, the material properties of brass provide the necessary durability and performance.

Maintenance professionals understand that substituting OEM hardware with generic bin parts can lead to premature failure or compatibility issues. The Miller 225807 ensures that your equipment remains compliant with factory standards. This nut is commonly found across various Miller product lines, serving as a critical fastener in both mechanical and electrical subsystems.

Key Specifications:

  • Material: Brass (BRS)
  • Thread: .312-24 (5/16-24 UNF)
  • Hex Size: 0.50 inch
  • Height: 0.18 inch
Additional Information
Packaging Description:1 Per Ea
Material:Brass
Thread Size:.312-24 (5/16-24)
Hex Size:0.50 inch
Height:0.18 inch
Product Type:Hex Nut
----- new values below ----
Material:Brass
Thread Size:.312-24 (5/16-24)
Hex Size:0.50 inch
Height:0.18 inch
Product Type:Hex Nut
Brand:Miller OEM
Packaging Description:1 Per Ea

INCLUDED

  • (1) Brass Hex Nut (.312-24 x .50 Hex x .18 H)

APPLICATIONS

  • Miller Welding Power Sources
  • Wire Feeders
  • Electrical Connections requiring brass hardware
  • General Welding Machine Repair

FAQ

The thread size is .312-24, which corresponds to a 5/16-24 UNF (Unified Fine) thread.

This nut is made from brass, indicated by the 'BRS' in the product description.

Brass is often used in welding equipment for its electrical conductivity and resistance to corrosion, or to prevent seizing on steel bolts.

The nut has a .50HEX specification, meaning you will need a 1/2-inch wrench or socket.

Yes, this is a genuine OEM Miller Electric replacement part, SKU 225807.

No, a standard 5/16-18 coarse thread nut will not fit a 5/16-24 fine thread bolt and will damage the threads.

The .18H refers to the height or thickness of the nut, which is 0.18 inches.

It fits specific Miller machines that call for part number 225807. Check your machine's parts manual to confirm compatibility.