Hammond Manufacturing Steel Ho...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$139.61
$65.92
Hammond Manufacturing HP400 HOLE PLUGS STEEL

Hammond Manufacturing Steel Hole Plugs HP400 Series Industrial Enclosure Accessories

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Model: HP400
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$139.61
$65.92
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Hammond Manufacturing Steel Hole Plugs HP400 Series Industrial Enclosure Accessories

Professional steel hole plugs for secure enclosure sealing

Hammond Manufacturing Steel Hole Plugs HP400 Series deliver reliable sealing solutions for industrial enclosures and electrical panels. These steel construction hole plugs provide durable protection against environmental ingress while maintaining professional appearance and long-term performance in demanding applications.

Professional Features & Benefits

  • Steel Construction: Provides superior durability and corrosion resistance for long-lasting performance in industrial environments.
  • 0.7 lbs Weight: Lightweight design ensures easy installation while maintaining structural integrity for secure sealing.
  • REACH Compliant: Meets European chemical safety standards for safe use in commercial and industrial applications.
  • RoHS Compliant: Environmentally responsible manufacturing ensures compliance with hazardous substance restrictions.
  • HP400 Series Design: Engineered for consistent fit and reliable sealing performance across compatible enclosure applications.

Technical Specifications

  • Country Of Origin: China
  • Product Weight: 0.7 lbs
  • Reach Compliant: Yes
  • Rohs Compliant: Yes
  • Usmca Compliant: No

Professional Applications

  • Industrial Control Panels
  • Electrical Enclosures
  • Commercial Equipment Housings
  • Manufacturing Facilities
  • Process Control Systems
  • Utility Infrastructure

Why Choose Hammond Manufacturing Quality?

Hammond Manufacturing Steel Hole Plugs combine proven steel construction with REACH and RoHS compliance standards, ensuring reliable performance and environmental responsibility. The lightweight 0.7 lb design facilitates professional installation while delivering the durability expected from Hammond Manufacturing industrial components.

Manufacturer Resources

Product Specs

Country Of Origin:
China
Product Weight:
0.7 lbs
Reach Compliant:
Yes
Rohs Compliant:
Yes
Usmca Compliant:
No

Hammond Manufacturing HP400 – Frequently Asked Questions

1) What is the Hammond HP400 hole plug made of, and will it hold up in a plant environment?
The HP400 is a steel hole plug, used to close off unused knockouts and openings in industrial enclosures and control panels. Steel construction is what Hammond specifies for it, so it suits painted steel enclosures in manufacturing plants, process control cabinets and utility equipment housings where a plastic snap plug would not match the panel.
2) Is the Hammond HP400 hole plug RoHS and REACH compliant for a European project spec?
Both. The HP400 is listed RoHS compliant and REACH compliant, which covers the usual chemical and hazardous substance requirements on commercial and industrial submittals. Note it is not USMCA compliant, so if your contract carries North American content requirements, that one will not be satisfied by this part.
3) What is the exact part number to order for Hammond steel hole plugs, and is it sold in a pack?
Order it as Hammond Manufacturing HP400. That is the single model in the HP400 series, and the catalogued weight against it is 0.7 lbs, which is heavier than one small plug would be on its own, so expect a multi piece pack rather than a single plug.
4) Can I use a steel hole plug to close a knockout I am not using in a control panel?
That is exactly the job. The HP400 steel plugs seal unused openings in industrial enclosures and electrical panels, keeping dust and moisture out of the cabinet while leaving the panel looking finished. For a cabinet with a gasketed, environmentally rated door, pair the plug with the sealing washer or gasket the enclosure manufacturer calls for so the opening matches the rest of the box.
5) Where is the Hammond HP400 hole plug manufactured?
The HP400 steel hole plugs are made in China. That matters on government and institutional orders with domestic sourcing clauses, and it ties in with the part not being USMCA compliant.
How fast can I get the Hammond Manufacturing HP400 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Hammond Manufacturing HP400 come with a warranty?
Absolutely. The Hammond Manufacturing HP400 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Hammond Manufacturing HP400?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Hammond Manufacturing HP400 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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