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Aluminum (21)
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Steel City

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Product Image of 4" Two Hole Steel Rigid Conduit Strap
$2.87 each
In Stock
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Product Image of 4-11/16" x 2-1/8" Deep Square Box, 3/4" & 1" Knockouts
$6.85 each
BOX UP & SAVE 17%
$114.20 box of 20
$5.71 each
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Product Image of 1-1/2" Two Hole Steel Rigid Conduit Strap
$1.10 each
BOX UP & SAVE 18%
$45.00 box of 50
$0.90 each
In Stock
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Product Image of 3-1/2" Round Box Cover, Flat, for Use w/ Round & Octagon Boxes
$1.79 each
BOX UP & SAVE 17%
$37.00 box of 25
$1.48 each
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Product Image of Two-Gang Adjustable Mud Ring for 4" Square Boxes
$14.96 each
BOX UP & SAVE 15%
$253.20 box of 20
$12.66 each
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Product Image of 4-11/16" Square Surface Cover for Two Duplex Flush Receptacles
4-11/16" Square Surface Cover for Two Duplex Flush Receptacles
SKU: RSL-8
Steel City
SKU: RSL-8
Brand: Steel City
$7.82 each
BOX UP & SAVE 15%
$66.80 box of 10
$6.68 each
In Stock
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Product Image of 4-11/16" x 2-1/8" Deep Square Box Extension Ring, 1/2" & 3/4" Knockouts
$8.87 each
BOX UP & SAVE 13%
$153.80 box of 20
$7.69 each
In Stock
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Product Image of 3/4" - 1/2" Steel Zinc Plated Reducing Washer for Rigid/IMC Conduits
$0.21 each
In Stock
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Product Image of 3-Gang Steel Box Cover (13.5 Cubic Inches)
$16.63 each
BOX UP & SAVE 13%
$72.70 box of 5
$14.54 each
In Stock
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Product Image of 3/4" Two Hole Steel Rigid Conduit Strap
$0.45 each
In Stock
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Product Image of 1/2" - 13 Malleable Iron Beam Clamp w/ 1" Opening
$15.32 each
BOX UP & SAVE 15%
$261.80 box of 20
$13.09 each
In Stock
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Product Image of 1" Conduit & Pipe Hanger w/ Bolt
$1.69 each
BOX UP & SAVE 21%
$134.00 box of 100
$1.34 each
In Stock
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Product Image of 3/4" Steel-Zinc Plated Snap-In Blank
$0.95 each
BOX UP & SAVE 21%
$75.00 box of 100
$0.75 each
In Stock
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Product Image of 4" Octagon Box Cover, Flat w/ 1/2" Knockout
$1.55 each
BOX UP & SAVE 17%
$64.00 box of 50
$1.28 each
In Stock
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Product Image of 1" - 1/2" Steel Zinc Plated Reducing Washer for Rigid/IMC Conduits
$0.43 each
In Stock
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Product Image of 1/2" One Hole Steel EMT Snap-On Strap
$0.44 each
BOX UP & SAVE 20%
$35.00 box of 100
$0.35 each
In Stock
Get 761 by Tue, Nov 17
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Product Image of 1/2" Steel EMT Compression Connector
$0.83 each
In Stock
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Product Image of 1" Two Hole Steel Rigid Conduit Strap
$0.63 each
BOX UP & SAVE 22%
$49.00 box of 100
$0.49 each
In Stock
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Product Image of 10-7/16" L x 4-1/2" W x 1-5/8" D 4-Gang Steel Box w/ 1/2" and 3/4" Knockouts
$31.57 each
BOX UP & SAVE 13%
$136.65 box of 5
$27.33 each
In Stock
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Product Image of 4" Square Surface Cover for One Ground Fault Receptacle & One Duplex Flush Receptacle
$7.62 each
BOX UP & SAVE 17%
$157.75 box of 25
$6.31 each
In Stock
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Product Image of 4" x 1-1/2" Deep Square Box Extension Ring w/ 1/2" Knockouts
$4.50 each
In Stock
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Product Image of 4-Gang Steel Box Cover (13.5 Cubic Inches)
$13.28 each
BOX UP & SAVE 6%
$62.25 box of 5
$12.45 each
In Stock
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Product Image of 4" Steel Square Device Cover
4" Steel Square Device Cover
SKU: 52-C-0
Steel City
SKU: 52-C-0
Brand: Steel City
$2.70 each
BOX UP & SAVE 17%
$56.00 box of 25
$2.24 each
In Stock
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Product Image of 8-5/8" L x 4-1/2" W x 1-5/8" D 3-Gang Steel Box w/ 1/2" and 3/4" Knockouts
$16.68 each
BOX UP & SAVE 9%
$75.85 box of 5
$15.17 each
In Stock
Get 24 by Tue, Nov 17
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Product Image of 1" - 3/4" Steel Zinc Plated Reducing Washer for Rigid/IMC Conduits
$0.38 each
In Stock
Get 436 by Tue, Nov 17
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Product Image of 1-1/2" One Hole Steel Rigid Conduit Strap
$1.99 each
BOX UP & SAVE 17%
$33.00 box of 20
$1.65 each
In Stock
Get 77 by Tue, Nov 17
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Product Image of 3-1/2" Deep Gangable Masonry Box w/ 1/2" & 3/4" Knockouts, 22 cu. in Capacity
$4.60 each
BOX UP & SAVE 7%
$86.00 box of 20
$4.30 each
In Stock
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Product Image of 1" Rigid Zinc Conduit Chase Nipple
$1.82 each
BOX UP & SAVE 8%
$41.75 box of 25
$1.67 each
In Stock
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Product Image of 4-11/16" x 5/8" Raised Square 2-Gang Device Cover
$4.38 each
In Stock
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Product Image of 6" Solid Wire Pigtail, #12 AWG, 10-32 x 3/8" Head Screw and Fork-Tongue Terminal
$1.03 each
BOX UP & SAVE 15%
$44.00 box of 50
$0.88 each
In Stock
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Product Image of 4" Conduit & Pipe Hanger w/ Bolt
$7.67 each
BOX UP & SAVE 9%
$69.90 box of 10
$6.99 each
In Stock
Get 55 by Tue, Nov 17
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Product Image of 4-11/16" x 1/2" Raised Square 2-Gang Device Cover
$3.84 each
Backorder
Get it by Tue, Dec 8 - Tue, Dec 15
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Product Image of 4-Gang Flat and Blank Steel Box Cover (8.5 Cubic Inches)
$10.93 each
BOX UP & SAVE 17%
$226.50 box of 25
$9.06 each
In Stock
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Product Image of 4" x 2-1/8" x 1-1/2" Single-Gang Utility Box w/ 1/2" Knockouts
$3.24 each
In Stock
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Product Image of 1-1/2" Two Hole Steel EMT Snap-On Strap
$1.14 each
BOX UP & SAVE 18%
$46.50 box of 50
$0.93 each
In Stock
Get 339 by Tue, Nov 17
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Product Image of 3/8" 1-Hole Flexible Conduit Strap
$0.79 each
Out of Stock
Get it by Tue, Dec 1 - Tue, Dec 8
Out of Stock
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Product Image of 3/4" Clamp Conduit Connector (Zinc)
$1.77 each
In Stock
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In Stock
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Product Image of 4-11/16" x 3/4" Raised Square 2-Gang Device Cover
$3.22 each
In Stock
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Product Image of 2-1/2" Two Hole Steel Rigid Conduit Strap
$2.51 each
BOX UP & SAVE 17%
$52.00 box of 25
$2.08 each
In Stock
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Product Image of 4-11/16" x 3/4" Raised Square Single-Gang Device Cover
$2.10 each
BOX UP & SAVE 3%
$51.00 box of 25
$2.04 each
Backorder
Get it by Tue, Dec 8 - Tue, Dec 15
Backorder
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Product Image of 3/4" One Hole Steel EMT Snap-On Strap
$0.44 each
BOX UP & SAVE 18%
$18.00 box of 50
$0.36 each
In Stock
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Product Image of 4" Steel Square Device Cover - 1-1/4" Raised
$2.92 each
BOX UP & SAVE 13%
$63.25 box of 25
$2.53 each
In Stock
Get 76 by Wed, Nov 18
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Product Image of 1-1/2" Steel Sealing Zinc Plated Locknut
$5.95 each
BOX UP & SAVE 9%
$270.00 box of 50
$5.40 each
In Stock
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In Stock
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Product Image of 1-1/4" Steel Sealing Zinc Plated Locknut
$5.74 each
BOX UP & SAVE 12%
$251.50 box of 50
$5.03 each
In Stock
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Product Image of 2-1/2" Conduit & Pipe Hanger w/ Bolt
$4.65 each
BOX UP & SAVE 17%
$96.25 box of 25
$3.85 each
In Stock
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Product Image of 3-1/4" x 1/2" Deep Round Box w/ 1/2" Knockouts & NM Sheathed C-8 Cable Clamp
$4.46 each
In Stock
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Product Image of 4" Two-Gang Steel Square Device Cover - 3/4" Raised
$2.95 each
BOX UP & SAVE 17%
$61.50 box of 25
$2.46 each
In Stock
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Product Image of 4" x 1-1/2" Deep Octagon Box Extension Ring w/ 1/2" and 3/4" Knockouts
$5.94 each
BOX UP & SAVE 17%
$123.00 box of 25
$4.92 each
In Stock
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In Stock
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More About Steel City

Steel City is an electrical box brand with more than 120 years of manufacturing history, currently produced in Athens, Tennessee. The line covers steel enclosures for switches, receptacles, and fixtures used across residential and commercial electrical installations.

Steel City boxes are designed to meet or exceed National Electrical Code and Underwriters Laboratories requirements, giving electricians a code-compliant option across both new construction and renovation work.

Product Lines

The Steel City lineup includes floor service boxes for concrete, wood, and raised floor construction. These support power, data, and audio and video connections. The line also includes utility and handy boxes and welded outlet and device boxes. Masonry boxes are built for block and brick construction.

Covers, brackets, and prefabricated assemblies round out the accessory side of the line. Boxes use pre-galvanized steel construction as part of their corrosion resistance.

Why Contractors Specify Steel City

Electricians specify Steel City boxes for drawn steel and welded construction built to meet or exceed NEC and UL requirements. That suits both new construction and renovation work.

The masonry box line is built specifically for block and brick wall installations, a construction type that many generic outlet boxes are not designed for. Having floor boxes, wall boxes, and masonry boxes under one brand lets a contractor standardize box specifications across a job that mixes construction types.

How to Choose Steel City Products

Picking the right Steel City box starts with the wall or floor construction type. Masonry boxes are built for block and brick, while standard utility and handy boxes fit typical stud wall framing.

Floor service boxes suit installations that route power, data, or audio and video connections up through a concrete, wood, or raised floor rather than out of a wall. Outlet and device box selection then depends on how many devices, switches, or fixtures the box needs to support. Matching the box's knockout pattern to the conduit or cable being run into it also affects installation time in the field.

Frequently Asked Questions

What makes a masonry box different from a standard outlet box?

A masonry box is built specifically to be set into block or brick construction, while a standard utility or outlet box is designed for stud wall framing.

Are Steel City boxes rated for commercial electrical work?

Steel City boxes are designed to meet or exceed NEC and UL requirements. The line is used across residential and commercial electrical installations.

What is a floor service box used for?

A floor service box brings power, data, or audio and video connections up through a concrete, wood, or raised floor.

Where are Steel City boxes manufactured?

Steel City boxes are manufactured in Athens, Tennessee.

Do Steel City boxes come pre-galvanized?

Yes. Steel City boxes use pre-galvanized steel construction as part of their corrosion resistance.