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37Z57 - ESAB 37Z57 Replacement Nut 3/8-24 UNF x 0.218L

Packaging: pack of 1
$37.50/EA $22.47/pack of 1 only $22.47/EASave 40%

Usually ships within 3-5 business days

OVERVIEW

ESAB 37Z57 Nut: Essential Repair Hardware

Keep your welding operations running smoothly with the ESAB 37Z57 Nut, a critical replacement component for various ESAB welding applications. In heavy-duty welding environments, equipment is subjected to constant use, heat, and vibration, which can occasionally lead to the wear or loss of fastening hardware. This 37Z57 nut is the exact replacement required to restore your equipment to its original factory specifications, ensuring that your downtime is minimized and your welds remain consistent.

Technical Details and Application

This component is defined by its specific geometry: a 3/8-24 Fine Thread and a length of 0.218 inches. The use of a fine thread (24 threads per inch on a 3/8" diameter) is deliberate; fine threads have a larger minor diameter, making the bolt or stud stronger in tension and shear. They also have a smaller helix angle, which makes them more resistant to vibrating loose—a common challenge in welding power sources and heavy machinery. The 0.218-inch thickness is engineered to provide adequate thread engagement without adding unnecessary bulk, fitting perfectly into the compact assemblies found in modern welding gear.

Why Choose OEM Parts?

Substituting this specialized nut with a generic alternative can result in cross-threading, insufficient clamping force, or clearance issues. The ESAB 37Z57 is manufactured to strict tolerances, ensuring it threads on smoothly and holds fast. It is an ideal stock item for maintenance departments and mobile repair technicians who service ESAB fleets. By using genuine ESAB parts, you ensure that the electrical continuity, mechanical stability, and overall safety of your welding setup are never compromised. Invest in the correct hardware to protect your larger equipment investments.

Additional Information
Thread Size:3/8-24 UNF
Length:0.218 in
Brand:ESAB
Packaging Description:1 Per Ea
Product Type:Replacement Nut
Compatibility:ESAB Equipment

INCLUDED

  • 1 x ESAB 37Z57 Nut (.38-24F 0.218LG)

APPLICATIONS

  • Repairing ESAB welding power sources
  • Securing connections in wire feeder assemblies
  • Maintenance of welding torch components
  • Replacement of lost or stripped nuts in gas equipment
  • General industrial fastening requiring 3/8-24 fine threads

FAQ

The nut features a 3/8-24 UNF (Unified Fine) thread pitch.

The length (or thickness) of the nut is 0.218 inches.

Yes, this is a genuine OEM replacement part manufactured by ESAB.

No, a standard 3/8-16 coarse nut will not fit and may damage the mating threads. You must use the specified 3/8-24 fine thread.

It is compatible with specific ESAB welding machines and assemblies. Please check your equipment's parts manual for the part number 37Z57 to confirm fitment.

Fine threads provide better resistance to loosening from vibration and offer higher tensile strength, which is important for industrial welding equipment.

No, this product listing is for the nut only. Washers must be purchased separately if needed.

Replace the nut if the threads are stripped, the hex head is rounded off, or if it no longer holds torque securely.