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Arlington (3)
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1/2" (8)
3/4" (8)
1" (5)
1-1/4" (2)
1-1/2" (2)
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2-1/2" (1)
3" (1)
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Plated Steel (3)
Stainless Steel (5)
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$5 to $10 (1)
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$35 to $40 (3)
$45 to $50 (3)
$50 to $60 (4)
$60 to $70 (2)

Head Plugs & Knockout Plugs

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Product Image of 1/2" Knock Out Seal Electrical Connector
1/2" Knock Out Seal Electrical Connector
SKU: KO50
Southwire
SKU: KO50
Brand: Southwire
$0.33 each
In Stock
Get 1,581 by Tue, Nov 17
In Stock
Get 1,581 by Tue, Nov 17
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Product Image of 3/4" Knock Out Seal Electrical Connector
$0.38 each
BOX UP & SAVE 18%
$31.00 box of 100
$0.31 each
In Stock
Get 946 by Tue, Nov 17
In Stock
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Product Image of 1" Knock out Seal Electrical Connector
$0.74 each
In Stock
Get 150 by Tue, Nov 17
In Stock
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Product Image of 1-1/2" Steel-Zinc Plated Snap-In Blank
$3.25 each
BOX UP & SAVE 18%
$132.50 box of 50
$2.65 each
In Stock
Get 148 by Tue, Nov 17
In Stock
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Product Image of 1-1/4" Steel-Zinc Plated Snap-In Blank
$2.20 each
BOX UP & SAVE 19%
$89.50 box of 50
$1.79 each
In Stock
Get 11 by Tue, Nov 17
In Stock
Get 11 by Tue, Nov 17
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Product Image of 2" Steel-Zinc Plated Snap-In Blank
$4.36 each
BOX UP & SAVE 17%
$90.25 box of 25
$3.61 each
In Stock
Get 92 by Tue, Nov 17
In Stock
Get 92 by Tue, Nov 17
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Product Image of 1/2" Steel-Zinc Plated Snap-In Blank
$0.65 each
BOX UP & SAVE 18%
$53.00 box of 100
$0.53 each
In Stock
Get 415 by Tue, Nov 17
In Stock
Get 415 by Tue, Nov 17
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Product Image of 3/4" Weatherproof Closure Plug
$0.64 each
In Stock
Get 85 by Thu, Nov 19
In Stock
Get 85 by Thu, Nov 19
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Product Image of 1/2" Close-Up Plug (Silver)
1/2" Close-Up Plug (Silver)
SKU: PLG-1-RD
Red Dot
SKU: PLG-1-RD
Brand: Red Dot
$1.27 each
In Stock
Get 139 by Tue, Nov 17
In Stock
Get 139 by Tue, Nov 17
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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
Get 335 by Tue, Nov 17
In Stock
Get 335 by Tue, Nov 17
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Product Image of 1" Knock Out Seal Electrical Connector
1" Knock Out Seal Electrical Connector
SKU: 902-ARLINGTON
Arlington
SKU: 902-ARLINGTON
Brand: Arlington
$1.12 each
BOX UP & SAVE 3%
$54.50 box of 50
$1.09 each
In Stock
Get 45 by Tue, Nov 17
In Stock
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Product Image of 3/4" Knock Out Seal Electrical Connector
3/4" Knock Out Seal Electrical Connector
SKU: 901-ARLINGTON
Arlington
SKU: 901-ARLINGTON
Brand: Arlington
$0.56 each
BOX UP & SAVE 4%
$27.00 box of 50
$0.54 each
In Stock
Get 189 by Tue, Nov 17
In Stock
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Product Image of 1/2" Weatherproof Closure Plug (Box of 100)
$46.51 each
In Stock
Get 5 by Thu, Nov 19
In Stock
Get 5 by Thu, Nov 19
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Product Image of 1/2" Knock Out Seal Electrical Connector
1/2" Knock Out Seal Electrical Connector
SKU: 900-ARLINGTON
Arlington
SKU: 900-ARLINGTON
Brand: Arlington
$0.80 each
BOX UP & SAVE 9%
$73.00 box of 100
$0.73 each
In Stock
Get 188 by Tue, Nov 17
In Stock
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Product Image of 1" Steel-Zinc Plated Snap-In Blank
$0.96 each
BOX UP & SAVE 9%
$43.50 box of 50
$0.87 each
In Stock
Get 80 by Tue, Nov 17
In Stock
Get 80 by Tue, Nov 17
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Product Image of 3/4" Close-Up Plug (Silver)
3/4" Close-Up Plug (Silver)
SKU: PLG-2-RD
Red Dot
SKU: PLG-2-RD
Brand: Red Dot
$1.41 each
In Stock
Get 370 by Tue, Nov 17
In Stock
Get 370 by Tue, Nov 17
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Product Image of 1" Close-Up Plug (Silver)
1" Close-Up Plug (Silver)
SKU: PLG-3-RD
Red Dot
SKU: PLG-3-RD
Brand: Red Dot
$2.64 each
In Stock
Get 20 by Tue, Nov 17
In Stock
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Product Image of 2" Conduit Electrical Enclosure Hole Seal (Steel)
$31.02 each
In Stock
Get 38 by Wed, Nov 18 - Thu, Nov 19
In Stock
Get 38 by Wed, Nov 18 - Thu, Nov 19
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Product Image of 3/4" Conduit Electrical Enclosure Hole Seal (Stainless Steel)
$38.54 each
In Stock
Get 30 by Fri, Nov 20 - Tue, Nov 24
In Stock
Get 30 by Fri, Nov 20 - Tue, Nov 24
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Product Image of 1/2" Conduit Electrical Enclosure Hole Seal (Stainless Steel)
$31.14 each
In Stock
Get 37 by Wed, Nov 18 - Thu, Nov 19
In Stock
Get 37 by Wed, Nov 18 - Thu, Nov 19
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Product Image of 2.50" Diameter Hol-Sealers Hole Seal, Mild Steel (Gray), AS150
$34.79 each
In Stock
Get 65 by Wed, Nov 18 - Thu, Nov 19
In Stock
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Product Image of 3" Conduit Electrical Enclosure Hole Seal (Steel)
$50.05 each
Backorder
Get it by Tue, Dec 15 - Mon, Jan 18
Backorder
Get it by Tue, Dec 15 - Mon, Jan 18
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Product Image of 1" Conduit Electrical Enclosure Hole Seal (Stainless Steel)
$53.18 each
In Stock
Get 19 by Wed, Nov 18 - Thu, Nov 19
In Stock
Get 19 by Wed, Nov 18 - Thu, Nov 19
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Product Image of 1-1/2" Conduit Electrical Enclosure Hole Seal (Stainless Steel)
$52.50 each
In Stock
Get 22 by Wed, Nov 18 - Thu, Nov 19
In Stock
Get 22 by Wed, Nov 18 - Thu, Nov 19
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Product Image of 3" Diameter Hol-Sealers Hole Seal, Mild Steel (Gray), AS200
$38.14 each
In Stock
Get 109 by Wed, Nov 18 - Thu, Nov 19
In Stock
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Product Image of 1/2" Oil-Tight Carbon Steel Hole Seal, Gray, WAS050
$9.45 each
In Stock
Get 20 by Wed, Nov 18 - Thu, Nov 19
In Stock
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Product Image of 3/4" Oil-Tight Carbon Steel Hole Seal, Gray, WAS075
$22.22 each
In Stock
Get 21 by Wed, Nov 18 - Thu, Nov 19
In Stock
Get 21 by Wed, Nov 18 - Thu, Nov 19
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Product Image of 3" Diameter Hol-Sealers Hole Seal, Polished, Stainless Steel 304, AS200SS
$99.96 each
In Stock
Get 5 by Wed, Nov 18 - Thu, Nov 19
In Stock
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Product Image of 1.38" Max Hole Diameter Mild Steel Hol-Sealer, Gray, AS050
$15.83 each
In Stock
Get 80 by Wed, Nov 18 - Thu, Nov 19
In Stock
Get 80 by Wed, Nov 18 - Thu, Nov 19
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Product Image of 2-1/2" Conduit Electrical Enclosure Hole Seal (Steel)
$39.86 each
In Stock
Get 14 by Wed, Nov 18 - Thu, Nov 19
In Stock
Get 14 by Wed, Nov 18 - Thu, Nov 19
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Product Image of 1.88" Diameter Hol-Sealers Hole Seal, Mild Steel (Gray), AS100
$30.20 each
In Stock
Get 31 by Wed, Nov 18 - Thu, Nov 19
In Stock
Get 31 by Wed, Nov 18 - Thu, Nov 19
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Product Image of 2.19" Diameter Hol-Sealers Hole Seal, Polished, Stainless Steel 304, AS125SS
$72.62 each
In Stock
Get 4 by Wed, Nov 18 - Thu, Nov 19
In Stock
Get 4 by Wed, Nov 18 - Thu, Nov 19
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Product Image of 1.56" Max Hole Diameter Mild Steel Hol-Sealer, Gray, AS075
$20.87 each
In Stock
Get 75 by Wed, Nov 18 - Thu, Nov 19
In Stock
Get 75 by Wed, Nov 18 - Thu, Nov 19
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Product Image of 4.12" Diameter Hol-Sealers Hole Seal, Mild Steel (Gray), AS300
$67.20 each
In Stock
Get 8 by Wed, Nov 18 - Thu, Nov 19
In Stock
Get 8 by Wed, Nov 18 - Thu, Nov 19
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Product Image of 1.88" Diameter Hol-Sealers Hole Seal, Polished, Stainless Steel 304, AS100SS
$70.51 each
In Stock
Get 75 by Wed, Nov 18 - Thu, Nov 19
In Stock
Get 75 by Wed, Nov 18 - Thu, Nov 19
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Product Image of 1-1/4" Conduit Electrical Enclosure Hole Seal (Stainless Steel)
$61.32 each
In Stock
Get 5 by Wed, Nov 18 - Thu, Nov 19
In Stock
Get 5 by Wed, Nov 18 - Thu, Nov 19
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Product Image of 2.19" Diameter Hol-Sealers Hole Seal, Mild Steel (Gray), AS125
$32.89 each
In Stock
Get 26 by Wed, Nov 18 - Thu, Nov 19
In Stock
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Product Image of 3.50" Diameter Hol-Sealers Hole Seal, Mild Steel (Gray), AS250
$49.95 each
In Stock
Get 8 by Wed, Nov 18 - Thu, Nov 19
In Stock
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Product Image of 1.56" Diameter Hol-Sealers Hole Seal, Polished, Stainless Steel 304, AS075SS
$53.48 each
In Stock
Get 5 by Wed, Nov 18 - Thu, Nov 19
In Stock
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Product Image of 2.50" Diameter Hol-Sealers Hole Seal, Polished, Stainless Steel 304, AS150SS
$84.68 each
In Stock
Get 3 by Wed, Nov 18 - Thu, Nov 19
In Stock
Get 3 by Wed, Nov 18 - Thu, Nov 19
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Product Image of 1.38" Diameter Hol-Sealers Hole Seal, Polished, Stainless Steel 304, AS050SS
$46.95 each
In Stock
Get 240 by Wed, Nov 18 - Thu, Nov 19
In Stock
Get 240 by Wed, Nov 18 - Thu, Nov 19
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Product Image of 4" Conduit Electrical Enclosure Hole Seal (Steel)
4" Conduit Electrical Enclosure Hole Seal (Steel)
SKU: S400-COOPER-BLINE
Cooper B-Line
SKU: S400-COOPER-BLINE
$74.92 each
In Stock
Get 3 by Wed, Nov 18 - Thu, Nov 19
In Stock
Get 3 by Wed, Nov 18 - Thu, Nov 19
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