Stainless Steel Threaded Fittings

Stainless steel threaded fittings are used to connect steel pipes. Tapered threads are cut into the end of the pipe, sealant is applied in the form of thread-sealing compound or thread seal tape (which is also known as PTFE or Teflon tape), and a pipe wrench is used to thread the pipe into a threaded fitting.

What are stainless steel threaded fittings used for?

Stainless steel threaded fittings are often used in buildings to convey natural gas or propane fuel, or in plumbing systems. They are a popular choice in fire sprinkler systems due to their resistance to mechanical damage and intense heat.

Threaded fittings made with stainless steel take advantage of the metal’s strength, resistance to corrosion and ease of cleaning.

Types of stainless steel threaded fittings

Different types of stainless steel threaded fittings include bulkhead adapters (used to connect tubing or piping of different sizes and configurations through a panel), nipples (used to connect two other fittings), elbows (used to connect pipes at curved angles), and tees (T-shaped fittings that accommodate three pipes).


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Description Price Connection 1 Connection 2 Length Connection 3 Fitting Type Shape Fitting Direction Thread Size 1 Thread Size 2 Thread Size 3 Connection Gender 1 Connection Gender 2 Connection Gender 3 Thread Standard 1
RS Stock No. 826-7096
BrandRS PRO
$50.14
Each
units
1-1/2 in R Male 1 in Rc Female 1.14in - Bush Hexagon Straight 1-1/2in 1in - Male Female - R (taper)
RS Stock No. 826-7107
BrandRS PRO
$55.39
Each
units
1/2 in Rc Female 1/2 in Rc Female 1.93in - Union Octagon Straight 1/2in 1/2in - Female Female - Rc (taper)
RS Stock No. 499-3186
BrandRS PRO
$8.96
Each
units
1-1/2 in R Male 1-1/2 in R Male 2.03in - Hexagon Nipple Hexagon - 1-1/2in 1-1/2in - Male Male - R (taper)
RS Stock No. 499-3350
BrandRS PRO
$28.70
Each
units
1-1/4 in G Female 1-1/4 in R Male - - Elbow Circular 90° 1-1/4in 1-1/4in - Female Male - G (parallel)
RS Stock No. 222-6591
BrandRS PRO
$22.26
Each
units
1/2 in NPT Male - - - Plug Hexagon - 1/2in - - Male - - NPT (taper)
RS Stock No. 826-6996
BrandRS PRO
$11.65
Each
units
3/8 in Rc Female 3/8 in Rc Female 1.5in - Coupler Circular Straight 3/8in 3/8in - Female Female - Rc (taper)
RS Stock No. 499-3675
BrandRS PRO
$27.37
Each
units
2 in R Male - 1.34in - Plug Hexagon - 2in - - Male - - R (taper)
RS Stock No. 222-6614
BrandRS PRO
$35.27
Each
units
3/4 in NPT Male - - - Plug Hexagon - 3/4in - - Male - - NPT (taper)
RS Stock No. 499-3142
BrandRS PRO
$24.65
Each
units
1-1/2 in G Female 1-1/2 in G Female - - Socket - - 1-1/2in 1-1/2in - Female Female - G (parallel)
RS Stock No. 826-6949
BrandRS PRO
$41.74
Each
units
1/4 in R Male 1/4 in Rc Female - - Elbow Circular 90° 1/4in 1/4in - Male Female - R (taper)
RS Stock No. 826-6946
BrandRS PRO
$45.14
Each
units
1/2 in R Male 1/2 in Rc Female - - Elbow Circular 90° 1/2in 1/2in - Male Female - R (taper)
RS Stock No. 499-3085
BrandRS PRO
$31.52
Each
units
1-1/2 in G Female 1-1/2 in G Female - - Elbow - 90° 1-1/2in 1-1/2in - Female Female - G (parallel)
RS Stock No. 499-3108
BrandRS PRO
$44.24
Each
units
2 in G Female 2 in G Female - - Elbow - 90° 2in 2in - Female Female - G (parallel)
RS Stock No. 499-2997
BrandRS PRO
$14.75
Each
units
3/4 in G Female 3/4 in G Female 2.36in 3/4 in G Female Tee Circular Tee 3/4in 3/4in 3/4 Female Female Female G (parallel)
RS Stock No. 499-3647
BrandRS PRO
$14.46
Each
units
1-1/4 in R Male - 1.2in - Plug Hexagon - 1-1/4in - - Male - - R (taper)
RS Stock No. 499-3417
BrandRS PRO
$11.61
Each
units
1/4 in G Female 1/4 in G Female 1.36in - Union Hexagon Straight 1/4in 1/4in - Female Female - G (parallel)
RS Stock No. 499-3237
BrandRS PRO
$4.112
Each (In a Pack of 5)
units
3/8 in R Male 3/8 in R Male 1.57in - Barrel Nipple Circular - 3/8in 3/8in - Male Male - R (taper)
RS Stock No. 499-2919
BrandRS PRO
$4.48
Each
units
3/8 in G Female 3/8 in G Female - - Socket - - 3/8in 3/8in - Female Female - G (parallel)
RS Stock No. 826-6974
BrandRS PRO
$59.70
Each
units
3/4 in G Female 3/4 in G Female 3in 3/4 in G Female Tee Circular Tee 3/4in 3/4in 3/4 Female Female Female G (parallel)
RS Stock No. 826-6927
BrandRS PRO
$28.35
Each
units
1/2 in G Female 1/2 in G Female - - Elbow Circular 90° 1/2in 1/2in - Female Female - G (parallel)
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