Arlington Industries Steel Sna...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
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Arlington Industries Steel Snap-In Blanks - Zinc Plated for Knockout

Arlington Industries Steel Snap-In Knockout Blanks - Zinc Plated Silver Finish

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Model: 900

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

$0.72
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Arlington Industries Steel Snap-In Knockout Blanks - Zinc Plated Silver Finish

Professional knockout closure solution with durable zinc plated steel construction

Arlington Industries Steel Snap-In Knockout Blanks provide reliable closure for unused knockout openings in electrical enclosures and panels. Constructed from plated steel with a silver zinc plated finish, these snap-in blanks deliver professional installation convenience and long-lasting corrosion resistance for both indoor and outdoor electrical applications.

Professional Features & Benefits

  • Plated Steel Construction: Provides superior strength and durability for secure knockout closure in demanding electrical environments.
  • Zinc Plated Finish: Delivers enhanced corrosion resistance and professional silver appearance for long-term reliability.
  • Snap-In Design: Enables quick and secure installation without additional hardware or complex mounting procedures.
  • Knockout Compatibility: Designed specifically for standard electrical knockout openings in panels, enclosures, and junction boxes.
  • Professional Grade: Arlington Industries quality ensures reliable performance in commercial and residential electrical installations.

Technical Specifications

  • Color: Silver
  • Material S: Plated Steel

Professional Applications

  • Electrical Panel Modifications
  • Junction Box Installations
  • Commercial Electrical Systems
  • Residential Electrical Upgrades
  • Industrial Control Panels
  • Maintenance and Retrofit Projects

Why Choose Arlington Industries Quality?

Arlington Industries delivers professional-grade electrical accessories with proven reliability and durability. The zinc plated steel construction and silver finish provide long-lasting performance and corrosion resistance for demanding electrical applications.

Manufacturer Resources

Product Specs

Department:
Electrical
Product Type:
Snap-In Blanks
Product Category:
Accessories
Product Color:
Silver
Product Material:
Plated Steel
Product Group:
Accessories

Arlington Industries 900 – Frequently Asked Questions

1) What size knockout does an Arlington snap-in blank close?
Arlington's steel snap-in knockout blanks cover the six standard trade sizes: 1/2 inch (model 900), 3/4 inch (901), 1 inch (902), 1-1/4 inch (903), 1-1/2 inch (904) and 2 inch (905). Match the blank to the trade size of the open knockout, not to the conduit you removed. Trade size is the knockout designation, so a 1/2 inch knockout takes the 900 regardless of what was in it before.
2) Do I need a locknut or any hardware to install a snap-in knockout blank?
No hardware at all. The blank snaps into the open knockout by hand and holds itself, so there is nothing to reach behind the panel for. That is the practical difference from a threaded knockout seal, which needs access to both sides of the enclosure wall to run a locknut. On a live panel or a box tight against a wall where you cannot get a hand behind the backplate, the snap-in is the one that goes in.
3) I have leftover open knockouts in a junction box after a retrofit. Is this what I need?
Yes, that is exactly the job. Unused knockouts left open in panels, junction boxes and enclosures have to be closed, and these snap-in blanks are made for that closure on retrofit and maintenance work. Count your open holes by trade size before ordering, since each size is its own model number, and a mixed panel usually needs two or three sizes rather than a box of one.
4) Can I use a zinc plated steel knockout blank outdoors or in a wet location enclosure?
The zinc plated steel blank is called out for both indoor and outdoor electrical applications, and the plating is what carries the corrosion resistance. Worth knowing the limit: a snap-in blank closes the hole mechanically. If your enclosure has a rating you have to preserve, a plain snap-in blank is not a gasketed seal, so on a rated outdoor enclosure use a sealing-type closure instead.
5) Steel or plastic knockout blank for a commercial panel?
These are plated steel, silver finish. Steel is what most commercial and industrial panel work calls for, because it keeps the enclosure wall continuous in metal and stands up to handling in a control panel or an industrial box that gets opened repeatedly. Plastic blanks are lighter duty and are usually a residential or low-abuse choice. If you are closing knockouts in a control panel or a commercial load center, the steel one is the right family.
6) How do I order Arlington knockout blanks by part number?
The numbering runs straight up with size: 900 for 1/2 inch, 901 for 3/4 inch, 902 for 1 inch, 903 for 1-1/4 inch, 904 for 1-1/2 inch, 905 for 2 inch. All six are the same plated steel blank in the silver zinc plated finish, so the only thing the part number changes is the size. That makes it easy to standardize a truck stock or a facility parts bin across all six.
7) Will a silver zinc plated blank match the other fittings in my panel?
The finish is a silver zinc plate, which reads the same as the galvanized and plated steel connectors, locknuts and fittings already in most panels and enclosures. For a property manager or facility crew keeping a consistent look across a building's electrical rooms, one finish across all six trade sizes means the patched knockouts do not stand out from the ones still in use.
How fast can I get the Arlington Industries 900 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 Arlington Industries 900 come with a warranty?
Absolutely. The Arlington Industries 900 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 Arlington Industries 900?
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 Arlington Industries 900 from ZenSupply?
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