Charman Inc.

Ductile Iron Threaded Square Head Plug

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*Images are for visual reference only.
  • Ductile iron threaded square head plug with male NPT threads on a white background.
  • Ductile iron threaded square head plug showing technical specifications, dimensions, features, and available sizes.
$1.49 - $2.95

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Description

Ductile Iron Threaded Square Head Plug

Charman ductile iron square head plugs close and terminate compatible female-threaded pipe, fitting, valve, or equipment connections using a male threaded connection.

Select the required nominal pipe size from the product options above. The selected variation determines the Charman part number, online selling price, net cost, estimated shipping weight, and size-specific product information.

Product Highlights

  • Ductile iron construction
  • Square head plug configuration
  • Male threaded connection
  • Designed to close a compatible female-threaded opening
  • Square head provides wrenching surfaces for installation and removal
  • Available in nominal sizes from 1/2" through 2"
  • Charman Manufacturing product family

Available Sizes

Charman Part # Nominal Size
620473 1/2"
620474 3/4"
620475 1"
620476 1-1/4"
620477 1-1/2"
620478 2"

Technical Specifications

Material Ductile Iron
Product Type Threaded Pipe Fitting
Configuration Square Head Plug
Connection Style Male Threaded
Head Style Square Head
Function Threaded Opening Termination
Available Sizes 1/2" through 2"
Manufacturer Charman Inc.

Threaded Opening Closure

A square head plug threads into a compatible female-threaded opening to close or terminate a piping connection. It can be used at the end of a fitting, valve, manifold, equipment connection, or other compatible threaded component.

Square Head Design

The raised square head provides external wrenching surfaces to assist with installation and removal while leaving the threaded connection accessible for future maintenance or piping modifications.

Common Applications

Industrial & Mechanical

  • Threaded piping systems
  • Unused fitting openings
  • Equipment connections
  • Maintenance and repair work

Commercial Piping

  • Utility piping
  • Valve and manifold connections
  • Threaded pipe assemblies
  • General piping fabrication

Manufacturer Resources

Review the Charman Ductile Iron Threaded Fittings catalog for manufacturer product-family information and related ductile iron threaded fitting configurations.

View Charman Ductile Iron Fittings Catalog

Need Help Selecting a Ductile Iron Square Head Plug?

Our industrial PVF specialists can help confirm nominal pipe size, threaded connection requirements, service conditions, and product availability.

Frequently Asked Questions

What is a ductile iron square head plug used for?

A square head plug closes or terminates a compatible female-threaded opening in a piping system or component.

Does this plug have male or female threads?

This plug uses a male threaded connection designed to install into a compatible female-threaded opening.

Why does the plug have a square head?

The square head provides external wrenching surfaces to assist with installation and removal.

What sizes are available?

This Charman ductile iron square head plug family is available in nominal sizes from 1/2" through 2".

How is a plug different from a cap?

A plug has male threads and installs inside a compatible female-threaded opening. A cap has female threads and installs over a compatible male-threaded connection.

How do I choose the correct variation?

Select the nominal pipe size that matches the female-threaded opening being plugged.

Important Ordering Notes

  • Select the required nominal pipe size before adding the product to your cart.
  • The selected variation determines the Charman part number, selling price, estimated weight, and net cost.
  • Verify fitting size and square head plug configuration before ordering.
  • This product uses male threads to close a compatible female-threaded opening.
  • Confirm pressure, temperature, media compatibility, and applicable installation requirements before use.
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