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Internet # 100146027

Model # 511-606HN

Store SKU # 182141

1-1/4 in. Galvanized Malleable Iron Floor Flange Fitting

$18.93
  • Applications include potable water, air and decorative projects
  • UL and FM Listings certify fitting meets top industry standards
  • Fittings connect with all NPT nipples and pipe of matching size
  • View More Details

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Product Details

About This Product

Southland offers one of the most extensive selections of black and galvanized malleable iron fittings in the industry. Our malleable fittings are available in 13 different diameters ranging from 1/8 in. up to 6 in. and each fitting is produced to exact industry specifications. All galvanized products are zinc-coated for water application and meet NSF-61 low-lead requirements. in addition, all of our malleable iron fittings undergo rigorous testing to meet the quality standards you've come to expect from BK product lines.

Highlights

  • Floor flange is used to secure pipe to wall or floor mounts for DIY applications
  • Galvanized finished accessories are used for hot and cold water systems, refrigeration, sprinklers, compressed air, gasoline, diesel, alcohol and some other applications where conducted fluid needs inner rustproof protection
  • Fittings are compatible with galvanized steel cut pipe and nipples
  • 150 class malleable iron pipe
  • 100% quality inspected and industry certified
  • Malleable iron fittings are used in a multitude of DIY applications creating an industrial look for any home
  • Note: Product may vary by store.
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Product Information

Internet # 100146027

Model # 511-606HN

Store SKU # 182141

Specifications

Dimensions

Face size

1-1/4"

Fitting 1 size

1-1/4"

Fitting Size Dimensions

1-1/4"

Single Fitting Size

1-1/4"

Details

Application

Non-Potable Water, Potable Water

Color Family

Silver

Compatible Pipe Material

Steel

Connectivity

Threaded

Features

Threaded

Fitting or Connector Type

Flange

Fitting/ Connector Collection

Galvanized

Material

Iron

Maximum working pressure (psi)

300

Maximum Working Temperature (F)

350

Pack Size

1

Pipe or Fitting Product Type

Fittings & Connectors

Product Weight (lb.)

0.93 lb

Returnable

90-Day

Warranty / Certifications

Manufacturer Warranty

1 year

Questions & Answers

What is fitting size? Is it inner diameter of the pipe? For example, 1" steel pipe has ID = 1" but OD = 1.315". So for this pipe, I need 1" flange, right?
ByAug 20, 2026
0 Answer | 
Answer This Question

Can this flange be used with a 3/8" zinc threaded rod?
ByApr 6, 2026
0 Answer | 
Answer This Question

Does this exact image come in 1 1/4" black iron, with the same detail and inscriptions? All I find is the plain version.
ByFeb 26, 2026
1 Answer | 
Answer This Question

Hello. Yes, it does. Please see Home Depot SKU # 564331. We hope this helps with your project!

By|Jun 26, 2026

    (1)

    How much length does this add to a threaded pipe (i.e. can a I thread the pipe to the depth of the flange)?
    ByJan 19, 2026
    1 Answer | 
    Answer This Question

    From my measurements, approx. 3/8"-1/2" is added. No, you cannot thread the pipe to the depth of the flange.

    By|Jun 17, 2026

      (1)

      What is the outside diameter of the flange for 2" pipe? Size of the holes, overall height of the part and location of the holes?
      ByAug 13, 2024
      1 Answer | 
      Answer This Question

      Hello, the diameter of the flange 131.6 mm, overall height is 26 mm, size of holes are 7.8, and we do not have the distance/location of the holes. We hope this helps with your project.

      By|Jun 3, 2026

        (2)

        If I am not mounting this on a floor but to something else, how much area do I need to use all 4 bolt holes? Can it mount to a 4X4?
        ByOct 9, 2022
        1 Answer | 
        Answer This Question

        Hi there, the total width of this fitting is 5.5-inches wide. This floor flange can be mounted to wood boards and many other surfaces, provided the correct fasteners are used. We hope this helps with your project.

        By|Aug 2, 2026

          (2)

          what is outside diameter 2" floor flange ?
          ByMay 9, 2022
          1 Answer | 
          Answer This Question

          Hi tdtd, the outer diameter of the 2-in floor flange is 5.5-in. We hope this helps with your project.

          By|Dec 5, 2024

            (1)

            What exact size screws fit perfectly with this?
            ByApr 15, 2022
            2 Answers | 
            Answer This Question

            A No. 18 wood screw nominally has a thread diameter of 0.294" so seems to be the largest that should fit. No. 20 is 0.320" so would not fit, based on the "approximately 0.31 inches" response given earlier.

            By|Apr 6, 2026

              (2)

              Hi Micromanage, the mounting holes for this floor flange are approximately 0.31-in diameter. We hope this helps identifying the pieces required for your project.

              By|Apr 18, 2022


                Viewing 1-8 of 26

                Customer Reviews

                4.6 out of 5

                • 4.6 out of 243 reviews
                • 88% recommend this product
                Filter by:
                Showing 1-10 of 243 reviews
                Worked as planned designing this feeder mount.
                by
                • Verified Purchase
                This customer chose to rate the product and not provide text.
                by
                Threaded so the pipe leans
                I bought two of these with some long nipples to use as a pivot axle on my invention (Hawaiian space laser). The pieces are threaded at an angle - not perpendicular to the flat base. This is going to make it very difficult to aim my laser.
                by
                  I used it to hang outdoor curtain rods and they worked perfectly.
                  I used it to hang outdoor curtain rods and they worked perfectly.
                  by
                  • Verified Purchase
                  • Recommended
                  Bit of an unconventional use but I used one of these to mount a birdhouse on a pipe. Solid flange...
                  Bit of an unconventional use but I used one of these to mount a birdhouse on a pipe. Solid flange, fit 1/2" galvanized pipe well. Although galvanized and weather-resistant, I painted it for style. I used standard deck screws which were a little small but 1/4" fit this flange. This flange is made in China.
                  by
                  • Recommended
                  1 found this review helpful
                  Used it as part of brackets for a shelf
                  Used it as part of brackets for a shelf
                  by
                  • Verified Purchase
                  • Recommended
                  Worked just as it is designed
                  Worked just as it is designed
                  by
                  • DIY
                  • Verified Purchase
                  • Recommended
                  Pipe flange is used for an adjustable height support stand for the drill press for drilling long ...
                  Pipe flange is used for an adjustable height support stand for the drill press for drilling long pieces at the drill press...works great!
                  by
                  • Verified Purchase
                  • Recommended
                  I needed a 1/2 " floor flange for a project I was making for my mom for Mother's day. I went to a...
                  I needed a 1/2 " floor flange for a project I was making for my mom for Mother's day. I went to another hardware store and ended up with the only one they had...too big come to find out. So I went to HD and a very nice associate helped me find the right size. I will shop HD first from now on. The project was a success and my mom loved it.
                  by
                  • DIY
                  • Verified Purchase
                  • Recommended
                  I purchased these to make a homemade curtain rod made from galvanized pipe. They turned out amazi...
                  I purchased these to make a homemade curtain rod made from galvanized pipe. They turned out amazing.
                  by
                  • Verified Purchase
                  • Recommended
                  3 found this review helpful
                  Showing 1-10 of 243 reviews

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                  Product Snapshot

                  Ideal for DIYers, this galvanized floor flange fitting ensures rustproof, leak-free connections for various piping applications.
                  Ideal for DIYers creating industrial looks with durable, galvanized iron for hot and cold water systems.
                  Ideal for DIYers needing durable, rust-proof fittings for various water and air applications.
                  Ideal for DIYers needing durable, rust-proof fittings for various water and air applications. Ensures reliable connections with 150 PSI and 350°F temperature rating.

                  Size Range

                  1/8 in. to 6 in.
                  1/8 in. to 6 in.
                  1/8 in. to 6 in.
                  1/8 in. to 6 in.

                  Pressure Rating

                  300 psi
                  300 psi
                  300 psi
                  300 psi

                  Corrosion Resistance Coating

                  Temperature Rating

                  Up to 350°F
                  350°F
                  Up to 350°F
                  Up to 350°F

                  Certifications

                  NSF-61
                  NSF-61
                  NSF-61
                  NSF-61