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Model #16-521-603

Store SKU #817902

1/2 in. FPT Black Iron FPT Floor Flange

  • Floor flange for securing pipe to the floor or a wall
  • Female threaded connection to easily attach piping
  • Install with 3/8 in. countersunk screws (sold separately)
  • See More Details

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Product Overview

VPC Global 1/2 in. Black Iron Floor Flange is for use with LP, natural gas and air supply lines. Perfect for DIY project builds such as a coat rack, table or shelf. Also suitable for professional plumbing applications meeting ASTM standards.
  • 1/2 in. female pipe threads connect to 1/2 in. male pipe threads
  • Hydrostatic tested
  • Easily mounts to the wall or floor
  • Perfect for DIY home projects
  • Not for use with potable water
  • Rated at 150psi
  • Use for above ground gas, LP and air applications

Info & Guides

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1/2 in. FPT Black Iron FPT Floor Flange
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BrandLDR Industries LDR Industries
Name1/2 in. Black Iron 90° FPT x FPT Elbow (2-Pack)1/2 in. x 12 in. Black Steel Nipple1/2 in. FPT Black Iron FPT Floor Flange1/2 in. Black Iron Floor Flange (2-Pack)
Fitting 1 size1/2"1/2"1/2"1/2"
Fitting or Connector TypeElbowNippleFlangeFlange
ApplicationAir,Furniture Grade,Natural Gas,PropaneAir,Furniture Grade,Natural Gas,PropaneNatural Gas,PropaneAir,Furniture Grade,Natural Gas,Propane
Pack Size2112
Bend Degree90 Degree
Fitting/ Connector CollectionBlackBlackBlackBlack
View ProductView ProductView ProductView Product



Face size
Fitting 1 size
Product Height (in.)
Single Fitting Size


Natural Gas,Propane
Color Family
Compatible Pipe Material
Black Pipe
Fitting or Connector Type
Fitting/ Connector Collection
Maximum working pressure (psi)
Maximum Working Temperature (F)
Pack Size
Pipe or Fitting Product Type
Fittings & Connectors
Product Weight (lb.)
Reducing Fitting

Warranty / Certifications

Manufacturer Warranty
Limited Lifetime

Questions & Answers


Will the pipe sit flush against the back of the flange? If not, how much length are you losing on...

Asked by Omar March 18, 2021

Hi, Omar - Not quite sure what you're asking, but if you are referring to the depth of the threads from the top of the flange to the base, that's approximately 5/8". If the pipe nipple is screwed into the flange all the way, that's the length that would be lost. If we're missing the intent of your question, please feel free to call me (Dave, x1026) or Jon (x1010) M-F 8a-5p (661) 257-3923. Thanks.

Only 2 of the screw holes can be used when mounting the flange to a wall stud, correct?

Asked by Omar March 17, 2021


What are the dimensions?

Asked by Don December 2, 2020

Hi, Don - The diameter of the piece is 3.5". The top-to-bottom measurement (around the thread area) is 9/16". The 4 securing holes in the base are 1/4" and are 1-13/16" apart when measuring in a square pattern. They're 2-9/16" apart when measuring on the diameter. Thanks.

why isn't the floor flange threaded all the way through the fitting?

Asked by Camera October 19, 2020

You may be looking for a "gas appliance stub out."

How strong are these? Curious if I could use this to do a ceiling pull up bar setup? Or would the...

Asked by Jacob September 6, 2020

These are built very tough. I used them to make some heavy duty book shelves that hold quite a bit of weight. The bigger concern would be that you need to make sure you find a good stud to mount them into, and then putting some lockthread on the threads to prevent the bar from rotating. You will probably only be able to get one screw in the top and one in the bottom hole since the holes on the left and right will be wider than the stud.

What is the size of the fastener holes?

Asked by MJ April 15, 2020

It states to use 5/8 in Flat head screws. I needed something sturdier, and went with 1/4 in. Carriage bolts. 5/8 in. Carriage bolts were too thick for the holes.


Asked by JOE April 10, 2020

Yes. I have it and there is no marking saying otherwise anywhere on the packaging or item. Fun fact: if it is sold in America and doesn't say the country of origin on it, it's from America.

What is the spacing of the holes? I would guess that the spacing is a bolt circle diameter (to ge...

Asked by DS March 24, 2020

the holes are 4 on 2.5" dia. circle.

using 4 # 8 SS screws, what is the pull out value.

Asked by jim October 15, 2019

Sorry Jim. I cannot answer that. In order to calculate the withdrawl force of your screws you will need to know the diameter fo the screw, (#8), the length of the screw and the description and specific gravity of the material that you driving the screws into. There is a lot of informaiton on the internet regarding how to find your answer. Take a look at https://www.engineeringtoolbox.com/wood-screws-allowable-withdrawal-load-d_1815.html

It is hard to tell but I am trying to run an air pipe through a wall and I was thinking about usi...

Asked by BB August 12, 2019

Be easier to drill a hole in the wall use longer pipe to go through the wall. Cut pipe to allow for half inch of threads from where it exits the wall and however much more is needed to mount the airhose connection to the pipe. Then cut threads on the pipe and screw one of these on back against the wall lag bolt or screw the flange to the wall.

1/2 in. FPT Black Iron FPT Floor Flange - page 2

Customer Reviews

  • 4.7
    out of 118 reviews
  • 90% recommend this product
Filter by:
Showing 1-10 of 118 reviews
Sturdiness is essentially helpful....
Sturdiness is essentially helpful.
by HomeDepotCustomer
It worked perfectly for our birdhouse project.
It worked perfectly for our birdhouse project.
by Steveo
1 person found this helpful
Good quality, accurate threading... worked perfectly
Good quality, accurate threading... worked perfectly
by einar
worked perfect!!!
worked perfect!!!
by William
2 people found this helpful
Looks good...
Looks good
by Leanne
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
No waterproofing, rusted immediately....
No waterproofing, rusted immediately.
by Meg
Response from VPC, Home-Flex ExpertApr 1, 2021
Yes, that is correct. Black iron pipe and fittings have no waterproofing and are not for use with water. If you want something that will resist rust, take a look at the galvanized version of this flange. Here is a link to copy and paste into your web browser.
https://www.homedepot.com/p/3-4-in-Galvanized-Malleable-Iron-Floor-Flange-511-604HN/100120677 ValenciaPipe
I use it to make a desk for my son.
I use it to make a desk for my son.
by Barret
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
by HomeDepotCustomer
Showing 1-10 of 118 reviews