Merit Brass

125# Leaded Brass Hex Locknut

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SKU:
X119
Availability:
Usually Ships Same Day
Weight:
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  • 125# Leaded Brass Hex Locknut
  • 125# Leaded Brass Hex Locknut Dimensions
$2.55 - $23.82

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Description

125# Leaded Brass Hex Locknut

125# Leaded Brass Hex Locknuts are threaded fittings designed to secure compatible male-threaded components in place. The hex-shaped exterior provides flat wrenching surfaces for installation and tightening, making the locknut useful for compatible piping, mechanical, and equipment connection assemblies.

This product is identified as a 125# leaded brass fitting. Manufacturer dimensional, certification, and material safety documentation is provided below for reference.

Product Highlights

  • 125# brass hex locknut
  • Leaded brass construction
  • Female threaded connection
  • Hex-shaped exterior
  • Designed to secure compatible male-threaded components
  • Provides flat wrenching surfaces
  • Compact threaded retaining fitting
  • Suitable for compatible plumbing and mechanical applications
  • Manufacturer fitting dimensions available
  • Manufacturer certification letter available
  • Material Safety Data Sheet available

Technical Specifications

Product Type Hex Locknut
Pressure Class 125#
Material Brass
Lead Status Leaded
Connection Type Female Threaded
Exterior Style Hex
Primary Function Securing a Compatible Male-Threaded Component
Product Documentation Dimensions, Certification Letter, and SDS Available

Hex Locknut Construction

A hex locknut uses internal female threads to engage a compatible male-threaded pipe, fitting, or component. Once tightened into position, the locknut helps secure the threaded assembly.

The hex-shaped exterior provides flat wrenching surfaces for controlled tightening and removal.

This compact configuration is useful where a threaded component must be retained or secured in a particular position.

Why Choose a Brass Hex Locknut?

Threaded Retention

  • Engages compatible male threads
  • Helps secure threaded components in position
  • Useful in piping and mechanical assemblies
  • Compact retaining configuration
  • Simple threaded installation

Hex Wrenching Surface

  • Hex-shaped exterior
  • Provides flat surfaces for wrench engagement
  • Supports controlled tightening
  • Allows straightforward removal when service is required
  • Suitable for compatible threaded assemblies

Hex Locknut vs. Hex Bushing

Hex Locknut

  • Female threaded fitting
  • Used to secure a compatible male-threaded component
  • Does not provide a reducing connection
  • Hex exterior allows wrench engagement
  • This product configuration

Hex Bushing

  • Male x female threaded fitting
  • Used to reduce from a larger connection to a smaller connection
  • Provides a size transition
  • Also has a hex wrenching surface
  • Different function from a locknut

Common Applications

Plumbing & Mechanical Piping

  • Threaded piping assemblies
  • Equipment connections
  • Fixture connections
  • Mechanical retaining applications
  • General plumbing assemblies

Industrial & General Service

  • Mechanical equipment connections
  • Maintenance and repair work
  • Compatible process piping assemblies
  • Threaded component retention
  • Applications requiring a brass threaded locknut

Installation & Selection Guidance

  • Confirm the required nominal locknut size before ordering.
  • Verify female thread compatibility with the mating male-threaded component.
  • Confirm the locknut is suitable for the intended retaining or securing function.
  • Use the hex wrenching surfaces during installation.
  • Avoid excessive tightening torque that could damage the threads or mating component.
  • Confirm pressure, temperature, and media compatibility where the locknut is part of a piping assembly.
  • Verify that leaded brass is permitted for the intended application.
  • Installation should comply with applicable piping, plumbing, mechanical, and project requirements.

Important Material Notice

  • This product is identified as leaded brass.
  • Confirm that leaded fittings are permitted for the intended application before installation.
  • Do not assume this product meets lead-free potable-water requirements.
  • Review the manufacturer certification and material safety documentation for additional information.

Product Documents

Import Brass Leaded Fitting Dimensions

Review manufacturer dimensional information for applicable leaded brass locknuts and related connection sizes.

View Fitting Dimensions

Import Brass Leaded Fitting Certification Letter

Review manufacturer certification documentation for the import leaded brass fitting product line.

View Certification Letter

Material Safety Data Sheet

Review the supplied material safety documentation for the leaded brass fitting product line.

View Material Safety Data Sheet

Need Help Selecting a 125# Leaded Brass Hex Locknut?

Our industrial PVF specialists can help review your locknut size, thread requirements, mating component, and material requirements before you order.

Frequently Asked Questions

What is a brass hex locknut used for?

A brass hex locknut is used to engage a compatible male-threaded component and help secure it in position.

What type of connection does this locknut use?

This locknut uses an internal female threaded connection.

Why is the exterior hex shaped?

The hex-shaped exterior provides flat wrenching surfaces for installation, tightening, and removal.

How is a locknut different from a hex bushing?

A locknut is used primarily to secure a threaded component. A hex bushing is a male x female reducing fitting used to transition between different connection sizes.

What material is this fitting?

The supplied product information identifies this fitting as leaded brass.

What pressure class is this fitting?

The product is identified as a 125# fitting.

Is this fitting lead free?

No. The supplied product information identifies this fitting as leaded.

Where can I find fitting dimensions?

Use the Import Brass Leaded Fitting Dimensions document in the Product Documents section above.

Where can I find certification information?

Use the Import Brass Leaded Fitting Certification Letter in the Product Documents section above.

Is an SDS available?

Yes. A Material Safety Data Sheet is provided in the Product Documents section above.

Important Ordering Notes

  • Product is a 125# leaded brass hex locknut.
  • Female threaded configuration.
  • Hex exterior provides wrenching surfaces.
  • Designed to help secure compatible male-threaded components.
  • Leaded brass construction.
  • Confirm nominal locknut size before ordering.
  • Verify thread compatibility with the mating component.
  • Confirm pressure, temperature, and media compatibility where applicable.
  • Verify that leaded material is permitted for the intended application.
  • Refer to the manufacturer dimensional, certification, and SDS documents for additional product information.
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