Malleable Iron

  • Malleable Iron Plugs are available in both black and galvanized finishes.
  • Stocked in sizes from 1" to 6".
  • All Malleable Iron Plugs have a Square Head.
Three different Malleable Iron Plugs in black and galvanized finishes.Temperature/Pressure cross reference for Malleable Iron PlugsSizes are Nominal Pipe Size (NPS) - size chart
Malleable Iron Plugs
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To start, select size. Follow the green box to refine selections as desired. Click “Lookup Product” any time after selecting size to display products matching criteria entered so far. Fields autofill when only one choice. Or use search box above.

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Class for pipe fittings is a standard defined by the ASME/ASTM. Though stated with a # sign, such as 150# or 3000#, it is not a direct pressure rating.  The pressure rating is dependent on material and temperature and is found by consulting an appropriate reference guide. XH relates to pipe wall thickness according to standard chart for given pipe diameter. bar means the item is made from solid bar stock and can be used for ratings up to and including class 6000#.
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Threaded - standard exposed head. Threaded by Socket - hex socket used to turn plug.
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Black - standard pipe finish. Galvanized - zinc plated for corrosion resistance.
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Domestic - Made in the USA. Import - Made elsewhere.
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Hex, Round, or Square head.

Plugs » Malleable Iron
  • Product Name: BMI1.00 SQ HD PLUG
  • SKU: 100966
  • Weight: .25
  • Class: 150#
  • End: threaded
  • Finish: black
  • Origin: import
  • Size: 1.00
  • Type: square

Description:
IMPORT BLACK MALLEABLE IRON

FOR 1" PIPE(1.315 OD) MALE THREADS, ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $1.95
10 - 24 = $1.79
25 - 49 = $1.66
50 + = $1.30
Quantity:
+
We show 269 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Plugs » Malleable Iron
  • Product Name: BMI1.25 SQ HD PLUG
  • SKU: 100967
  • Weight: .39
  • Class: 150#
  • End: threaded
  • Finish: black
  • Origin: import
  • Size: 1.25
  • Type: square

Description:
IMPORT BLACK MALLEABLE IRON

FOR 1-1/4" PIPE(1.66 OD) MALE THREADS, ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $2.13
10 - 24 = $1.95
25 - 49 = $1.78
50 + = $1.42
Quantity:
+
We show 48 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Plugs » Malleable Iron
  • Product Name: BMI1.50 SQ HD PLUG
  • SKU: 100968
  • Weight: .50
  • Class: 150#
  • End: threaded
  • Finish: black
  • Origin: import
  • Size: 1.50
  • Type: square

Description:
IMPORT BLACK MALLEABLE IRON

FOR 1-1/2" PIPE(1.90 OD) MALE THREADS, ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $3.75
10 - 24 = $3.44
25 - 49 = $3.19
50 + = $2.50
Quantity:
+
We show 425 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Plugs » Malleable Iron
  • Product Name: BMI2.00 SQ HD PLUG
  • SKU: 100969
  • Weight: 1.23
  • Class: 150#
  • End: threaded
  • Finish: black
  • Origin: import
  • Size: 2.00
  • Type: square

Description:
IMPORT BLACK MALLEABLE IRON

FOR 2" PIPE(2.375 OD) MALE THREADS, ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $4.20
10 - 24 = $3.85
25 - 49 = $3.57
50 + = $2.80
Quantity:
+
We show 659 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Plugs » Malleable Iron
  • Product Name: BMI2.50 SQ HD PLUG
  • SKU: 104759
  • Weight: 1.32
  • Class: 150#
  • End: threaded
  • Finish: black
  • Origin: import
  • Size: 2.50
  • Type: square

Description:
IMPORT BLACK MALLEABLE IRON

FOR 2-1/2" PIPE(2.875 OD) MALE THREADS, ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $9.75
10 - 24 = $8.94
25 - 49 = $8.29
50 + = $6.50
Quantity:
+
We show 36 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Plugs » Malleable Iron
  • Product Name: BMI3.00 SQ HD PLUG
  • SKU: 104760
  • Weight: 1.87
  • Class: 150#
  • End: threaded
  • Finish: black
  • Origin: import
  • Size: 3.00
  • Type: square

Description:
IMPORT BLACK MALLEABLE IRON

FOR 3" PIPE(3.50 OD) MALE THREADS, ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $13.50
10 - 24 = $12.38
25 - 49 = $11.25
50 + = $9.00
Quantity:
+
We show 53 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Plugs » Malleable Iron
  • Product Name: BMI3.50 SQ HD PLUG
  • SKU: 138197
  • Weight: 3.50
  • Class: 150#
  • End: threaded
  • Finish: black
  • Origin: import
  • Size: 3.50
  • Type: square

Description:
IMPORT BLACK MALLEABLE IRON

Price by Quantity:
1 - 4 = $54.27
5 - 9 = $45.23
10 - 14 = $36.18
15 + = $33.47
Quantity:
+
We show 0 in stock
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All items ship from Houston, TX.

Plugs » Malleable Iron
  • Product Name: BMI4.00 SQ HD PLUG
  • SKU: 104127
  • Weight: 4.00
  • Class: 150#
  • End: threaded
  • Finish: black
  • Origin: import
  • Size: 4.00
  • Type: square

Description:
IMPORT BLACK MALLEABLE IRON

FOR 4" PIPE(4.50 OD) MALE THREADS, ASTM A197/ASME B16.3

Price by Quantity:
1 - 9 = $19.46
10 - 24 = $17.30
25 - 49 = $15.14
50 + = $13.41
Quantity:
+
We show 42 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Plugs » Malleable Iron
  • Product Name: BMI6.00 SQ HD PLUG
  • SKU: 101083
  • Weight: 9.94
  • Class: 150#
  • End: threaded
  • Finish: black
  • Origin: import
  • Size: 6.00
  • Type: square

Description:
IMPORT BLACK MALLEABLE IRON

FOR 6" PIPE(6.625 OD) MALE THREADS, ASTM A197/ASME B16.3

Price by Quantity:
1 - 4 = $48.20
5 - 9 = $42.84
10 - 24 = $37.49
25 + = $33.20
Quantity:
+
We show 10 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Plugs » Malleable Iron
  • Product Name: GMI1.00 SQ HD PLUG
  • SKU: 107791
  • Weight: .28
  • Class: 150#
  • End: threaded
  • Finish: galvanized
  • Origin: import
  • Size: 1.00
  • Type: square

Description:
IMPORT GALV MALLEABLE IRON

FOR 1" PIPE(1.315 OD) MALE THREADS, ASTM A153/ASME B16.3

Price by Quantity:
1 - 9 = $2.61
10 - 24 = $2.39
25 - 49 = $2.22
50 + = $1.74
Quantity:
+
We show 33 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Plugs » Malleable Iron
  • Product Name: GMI1.25 SQ HD PLUG
  • SKU: 106346
  • Weight: .55
  • Class: 150#
  • End: threaded
  • Finish: galvanized
  • Origin: import
  • Size: 1.25
  • Type: square

Description:
IMPORT GALV MALLEABLE IRON

FOR 1-1/4" PIPE(1.66 OD) MALE THREADS, ASTM A153/ASME B16.3

Price by Quantity:
1 - 9 = $4.05
10 - 24 = $3.71
25 - 49 = $3.44
50 + = $2.70
Quantity:
+
We show 45 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Plugs » Malleable Iron
  • Product Name: GMI1.50 SQ HD PLUG
  • SKU: 107972
  • Weight: .50
  • Class: 150#
  • End: threaded
  • Finish: galvanized
  • Origin: import
  • Size: 1.50
  • Type: square

Description:
IMPORT GALV MALLEABLE IRON

uOR 1-1/2" PIPE(1.90 OD) MALE THREADS, ASTM A153/ASME B16.3

Price by Quantity:
1 - 9 = $4.04
10 - 24 = $3.71
25 - 49 = $3.44
50 + = $2.70
Quantity:
+
We show 18 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Plugs » Malleable Iron
  • Product Name: GMI2.00 SQ HD PLUG
  • SKU: 107967
  • Weight: .83
  • Class: 150#
  • End: threaded
  • Finish: galvanized
  • Origin: import
  • Size: 2.00
  • Type: square

Description:
IMPORT GALV MALLEABLE IRON

FOR 2" PIPE(2.375 OD) MALE THREADS, ASTM A153/ASME B16.3

Price by Quantity:
1 - 9 = $9.00
10 - 24 = $8.25
25 - 49 = $7.65
50 + = $6.00
Quantity:
+
We show 87 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Plugs » Malleable Iron
  • Product Name: GMI2.50 SQ HD PLUG
  • SKU: 105390
  • Weight: 1.34
  • Class: 150#
  • End: threaded
  • Finish: galvanized
  • Origin: import
  • Size: 2.50
  • Type: square

Description:
IMPORT GALV MALLEABLE IRON

FOR 2-1/2" PIPE(2.875 OD) MALE THREADS, ASTM A153/ASME B16.3

Price by Quantity:
1 - 9 = $9.96
10 - 24 = $9.13
25 - 49 = $8.30
50 + = $6.64
Quantity:
+
We show 1 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Plugs » Malleable Iron
  • Product Name: GMI3.00 SQ HD PLUG
  • SKU: 107581
  • Weight: 1.91
  • Class: 150#
  • End: threaded
  • Finish: galvanized
  • Origin: import
  • Size: 3.00
  • Type: square

Description:
IMPORT GALV MALLEABLE IRON

FOR 3" PIPE(3.50 OD) MALE THREADS, ASTM A153/ASME B16.3

Price by Quantity:
1 - 9 = $22.50
10 - 24 = $20.63
25 - 49 = $18.75
50 + = $15.00
Quantity:
+
We show 19 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.

Plugs » Malleable Iron
  • Product Name: GMI4.00 SQ HD PLUG
  • SKU: 107580
  • Weight: 4.00
  • Class: 150#
  • End: threaded
  • Finish: galvanized
  • Origin: import
  • Size: 4.00
  • Type: square

Description:
IMPORT GALV MALLEABLE IRON

FOR 4 PIPE(4.50 OD) MALE THREADS, ASTM A153/ASME B16.3

Price by Quantity:
1 - 9 = $37.37
10 - 24 = $33.22
25 - 49 = $29.07
50 + = $25.75
Quantity:
+
We show 6 in stock
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To estimate shipping please add to cart, click checkout and enter your zipcode on the left.
All items ship from Houston, TX.