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Adapter (2)
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Aluminum (21)
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Steel City

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Product Image of 1" Zinc Straight Liquid Tight Connector
$11.90 each
BOX UP & SAVE 10%
$53.35 box of 5
$10.67 each
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Get it by Wed, Dec 9 - Wed, Dec 16
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Product Image of 3/4" Insulated Steel EMT Compression Connector
$1.59 each
In Stock
Get 118 by Thu, Nov 19
In Stock
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Product Image of 4" x 1-1/4" Deep Square Box w/ 1/2" Knockouts
$4.33 each
In Stock
Get 38 by Tue, Nov 17
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Product Image of 4" x 2-1/8" x 2-1/8" Single-Gang Utility Box w/ 3/4" Knockouts
$5.22 each
BOX UP & SAVE 14%
$223.50 box of 50
$4.47 each
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Get it by Wed, Dec 9 - Wed, Dec 16
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Product Image of 1" Steel Sealing Zinc Plated Locknut
1" Steel Sealing Zinc Plated Locknut
SKU: LS-103
Steel City
SKU: LS-103
Brand: Steel City
(1)
$5.57 each
BOX UP & SAVE 18%
$227.00 box of 50
$4.54 each
In Stock
Get 90 by Tue, Nov 17
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Product Image of 4" x 1-1/2" Deep Octagon Box w/ 1/2" and 3/4" Knockouts
$4.00 each
BOX UP & SAVE 19%
$163.00 box of 50
$3.26 each
In Stock
Get 210 by Tue, Nov 17
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Product Image of 4" x 2-1/8" Deep Octagon Box w/ 1/2" Knockouts
$5.84 each
In Stock
Get 17 by Thu, Nov 19
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Product Image of 1-1/2" One Hole Steel EMT Snap-On Strap
$1.59 each
BOX UP & SAVE 14%
$27.20 box of 20
$1.36 each
In Stock
Get 8 by Tue, Nov 17
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Product Image of 4-11/16" Square Surface Cover for #3330–30A 250V Twist-Lock Receptacle
$6.43 each
BOX UP & SAVE 10%
$57.80 box of 10
$5.78 each
In Stock
Get 87 by Tue, Nov 17
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Product Image of 4" x 1-1/2" Deep Octagon Box w/ 1/2" Knockouts, NM C-5 Cable Clamps & Adjustable Ears
$8.09 each
In Stock
Get 20 by Tue, Nov 17
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Product Image of 1/2" Insulated Steel EMT Compression Connector
$1.37 each
BOX UP & SAVE 18%
$56.00 box of 50
$1.12 each
In Stock
Get 101 by Tue, Nov 17
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Product Image of 4-11/16" Square Surface Cover for One Ground Fault Receptacle and One Toggle Switch
$9.96 each
BOX UP & SAVE 15%
$84.50 box of 10
$8.45 each
In Stock
Get 6 by Tue, Nov 17
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Product Image of 1" Steel EMT Set Screw Coupling
$1.05 each
BOX UP & SAVE 19%
$85.00 box of 100
$0.85 each
In Stock
Get 28 by Tue, Nov 17
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Product Image of 4" x 1-1/2" Deep Octagon Box for Use w/ Armored/Metal Clad Cable
$10.10 each
BOX UP & SAVE 17%
$210.50 box of 25
$8.42 each
In Stock
Get 25 by Wed, Nov 18
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Product Image of 1-1/2" Conduit & Pipe Hanger w/ Bolt
$3.92 each
BOX UP & SAVE 21%
$309.00 box of 100
$3.09 each
In Stock
Get 294 by Tue, Nov 17
In Stock
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Product Image of 1-1/4" One Hole Steel Rigid Conduit Strap
$1.33 each
BOX UP & SAVE 17%
$27.50 box of 25
$1.10 each
In Stock
Get 50 by Tue, Nov 17
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Product Image of 4-11/16" x 1-1/4" Raised Square Single-Gang Device Cover
$3.51 each
BOX UP & SAVE 7%
$32.80 box of 10
$3.28 each
Backorder
Get it by Wed, Dec 16 - Tue, Jan 19
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Product Image of 3/4" Zinc Straight Liquid Tight Connector
$13.16 each
BOX UP & SAVE 17%
$272.50 box of 25
$10.90 each
In Stock
Get 25 by Tue, Nov 17
In Stock
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Product Image of 1-1/4" Steel Zinc Plated Locknut
$1.42 each
BOX UP & SAVE 18%
$58.00 box of 50
$1.16 each
In Stock
Get 600 by Tue, Nov 17
In Stock
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Product Image of 1/2" Zinc Straight Liquid Tight Connector
$6.76 each
BOX UP & SAVE 14%
$144.75 box of 25
$5.79 each
In Stock
Get 25 by Tue, Nov 17
In Stock
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Product Image of 3-1/2" 1-Gang Adjustable Wall Box w/ 1/2" Knockouts
$15.45 each
In Stock
Get 37 by Tue, Nov 17
In Stock
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Product Image of 4-11/16" Square Surface Cover for One Ground Fault Receptacle and One Duplex Receptacle
$12.06 each
BOX UP & SAVE 16%
$101.80 box of 10
$10.18 each
In Stock
Get 9 by Fri, Nov 20
In Stock
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Product Image of 4" Steel Square Device Cover - 1" Raised
$3.00 each
BOX UP & SAVE 16%
$62.75 box of 25
$2.51 each
In Stock
Get 23 by Tue, Nov 17
In Stock
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Product Image of 2-1/2" Deep Gangable Masonry Box w/ 1/2" & 3/4" Knockouts
$8.22 each
BOX UP & SAVE 17%
$136.20 box of 20
$6.81 each
In Stock
Get 20 by Tue, Nov 17
In Stock
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Product Image of 3" Thin Construction Zinc-Plated Steel Locknut
$2.74 each
BOX UP & SAVE 8%
$62.75 box of 25
$2.51 each
In Stock
Get 73 by Tue, Nov 17
In Stock
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Product Image of 2" Steel Zinc Plated Locknut
2" Steel Zinc Plated Locknut
SKU: LN-106
Steel City
SKU: LN-106
Brand: Steel City
$3.00 each
In Stock
Get 39 by Tue, Nov 17
In Stock
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Product Image of 4" x 1-1/2" Deep Octagon Box w/ 1/2" Knockouts & V Bracket
$5.27 each
In Stock
Get 19 by Thu, Nov 19
In Stock
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Product Image of 1-1/4" Steel EMT Set Screw Connector
$2.89 each
BOX UP & SAVE 18%
$59.00 box of 25
$2.36 each
In Stock
Get 183 by Tue, Nov 17
In Stock
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Product Image of 1-1/4" Steel EMT Set Screw Coupling
$3.35 each
BOX UP & SAVE 17%
$69.50 box of 25
$2.78 each
In Stock
Get 31 by Tue, Nov 17
In Stock
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Product Image of 4" x 2-1/8" x 2-1/8" Single-Gang Utility Box w/ 1/2" Knockouts & T Bracket
$11.10 each
BOX UP & SAVE 13%
$240.75 box of 25
$9.63 each
In Stock
Get 43 by Tue, Nov 17
In Stock
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Product Image of 1" One Hole Steel EMT Snap-On Strap
$1.06 each
BOX UP & SAVE 18%
$43.50 box of 50
$0.87 each
In Stock
Get 200 by Tue, Nov 17
In Stock
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Product Image of 1" Clamp Conduit Connector (Zinc)
$2.52 each
BOX UP & SAVE 13%
$55.00 box of 25
$2.20 each
In Stock
Get 50 by Tue, Nov 17
In Stock
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Product Image of 3/4" Steel EMT Compression Coupling
$1.34 each
In Stock
Get 280 by Tue, Nov 17
In Stock
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Product Image of 3-1/2" Deep Gangable Switch Box w/ Flush Ears, 3/4" Knockouts
$7.30 each
BOX UP & SAVE 14%
$157.25 box of 25
$6.29 each
In Stock
Get 18 by Tue, Nov 17
In Stock
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Product Image of 4" x 5/8" Raised Round Box Cover, Center Blanked w/ Tapped Ears on 2-3/4" Centers
$2.22 each
BOX UP & SAVE 3%
$53.75 box of 25
$2.15 each
In Stock
Get 3 by Tue, Nov 17
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Product Image of 3-1/2" Conduit & Pipe Hanger w/ Bolt
$9.80 each
BOX UP & SAVE 17%
$203.00 box of 25
$8.12 each
In Stock
Get 74 by Thu, Nov 19
In Stock
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Product Image of 4-11/16" x 1-1/4" Raised Square 2-Gang Device Cover
$6.36 each
In Stock
Get 29 by Thu, Nov 19
In Stock
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Product Image of 3-1/2" Deep Gangable Switch Box w/ Flush Ears, 1/2" Knockouts, Armored Cable Clamps (C-3)
$6.50 each
BOX UP & SAVE 14%
$140.50 box of 25
$5.62 each
In Stock
Get 72 by Wed, Nov 18
In Stock
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Product Image of 4-11/16" Square Surface Cover for One Single Flush Receptacle
$10.07 each
BOX UP & SAVE 16%
$85.00 box of 10
$8.50 each
In Stock
Get 11 by Tue, Nov 17
In Stock
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Product Image of 4" x 1-1/2" Deep Octagon Fan Box w/ 1/2" Knockouts, NM C-5 Cable Clamps
$18.66 each
In Stock
Get 20 by Tue, Nov 17
In Stock
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Product Image of 4" Steel Square Box w/ 3/4" Knockout
4" Steel Square Box w/ 3/4" Knockout
SKU: 52151-3/4
Steel City
SKU: 52151-3/4
Brand: Steel City
$2.66 each
BOX UP & SAVE 14%
$114.50 box of 50
$2.29 each
In Stock
Get 47 by Fri, Nov 20
In Stock
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Product Image of 3/4" 3-Piece Rigid Steel Coupling
$13.90 each
BOX UP & SAVE 17%
$288.00 box of 25
$11.52 each
In Stock
Get 62 by Tue, Nov 17
In Stock
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Product Image of 1/2" 3-Piece Rigid Steel Coupling
$13.75 each
BOX UP & SAVE 20%
$551.00 box of 50
$11.02 each
In Stock
Get 17 by Tue, Nov 17
In Stock
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Product Image of 2" Steel EMT Raintight Compression Connector
$15.45 each
BOX UP & SAVE 12%
$341.50 box of 25
$13.66 each
In Stock
Get 43 by Fri, Nov 20
In Stock
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Product Image of 1-1/4" Insulated Steel EMT Compression Connector
$5.22 each
BOX UP & SAVE 15%
$110.75 box of 25
$4.43 each
In Stock
Get 25 by Tue, Nov 17
In Stock
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Product Image of 1-1/4" Conduit & Pipe Hanger w/ Bolt for EMT
$1.98 each
BOX UP & SAVE 15%
$169.00 box of 100
$1.69 each
In Stock
Get 107 by Tue, Nov 17
In Stock
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Product Image of 4-11/16" x 2-1/8" Deep Square Box Extension Ring, 1" Knockouts
$12.92 each
Backorder
Get it by Wed, Dec 9 - Wed, Dec 16
Backorder
Get it by Wed, Dec 9 - Wed, Dec 16
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Product Image of 2-1/4" Deep Gangable Switch Box w/ 1/2" Knockouts, NM Cable Clamps (C-1) & Ears Flush for Old Work
$8.04 each
In Stock
Get 22 by Wed, Nov 18
In Stock
Get 22 by Wed, Nov 18
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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.