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. 499-3603
BrandRS PRO
MYR57.61
Each
units
1-1/2 in R Male 3/4 in G Female 1.18in - Bush Hexagon - 1-1/2in 3/4in - Male Female - R (taper)
RS Stock No. 826-7080
BrandRS PRO
MYR49.40
Each
units
3/4 in R Male 1/2 in Rc Female 0.87in - Bush Hexagon Straight 3/4in 1/2in - Male Female - R (taper)
RS Stock No. 499-3697
BrandRS PRO
MYR154.58
Each
units
1-1/2 in G Female 1-1/2 in G Female 59mm - Union Decagon Straight 1-1/2in 1-1/2in - Female Female - G (parallel)
RS Stock No. 499-3473
BrandRS PRO
MYR18.50
Each
units
3/4 in R Male - 0.92in - Plug Hexagon - 3/4in - - Male - - R (taper)
RS Stock No. 222-6614
BrandRS PRO
MYR97.98
Each
units
3/4 in NPT Male - - - Plug Hexagon - 3/4in - - Male - - NPT (taper)
RS Stock No. 826-6992
BrandRS PRO
MYR23.47
Each
units
1/4 in Rc Female 1/4 in Rc Female 1.38in - Coupler Circular Straight 1/4in 1/4in - Female Female - Rc (taper)
RS Stock No. 499-3136
BrandRS PRO
MYR59.80
Each
units
1-1/4 in G Female 1-1/4 in G Female - - Socket - - 1-1/4in 1-1/4in - Female Female - G (parallel)
RS Stock No. 499-3726
BrandRS PRO
MYR102.46
Each
units
2 in R Male 1/2 in G Female 1.32in - Bush Hexagon - 2in 1/2in - Male Female - R (taper)
RS Stock No. 499-3186
BrandRS PRO
MYR63.96
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. 499-3170
BrandRS PRO
MYR56.11
Each
units
1-1/4 in R Male 1-1/4 in R Male 2.03in - Hexagon Nipple Hexagon - 1-1/4in 1-1/4in - Male Male - R (taper)
RS Stock No. 499-3108
BrandRS PRO
MYR122.93
Each
units
2 in G Female 2 in G Female - - Elbow - 90° 2in 2in - Female Female - G (parallel)
RS Stock No. 499-3035
BrandRS PRO
MYR44.33
Each
units
1 in G Female 1 in G Female - - Socket - - 1in 1in - Female Female - G (parallel)
RS Stock No. 499-3120
BrandRS PRO
MYR109.18
Each
units
1-1/2 in G Female 1-1/2 in G Female 3.48in 1-1/2 in G Female Tee Circular Tee 1-1/2in 1-1/2in 1-1/2 Female Female Female G (parallel)
RS Stock No. 499-3524
BrandRS PRO
MYR20.03
Each
units
3/4 in R Male 1/2 in G Female 0.91in - Bush Hexagon - 3/4in 1/2in - Male Female - R (taper)
RS Stock No. 826-7125
BrandRS PRO
MYR422.25
Each
units
2 in Rc Female 2 in Rc Female 3.39in - Union Decagon Straight 2in 2in - Female Female - Rc (taper)
RS Stock No. 499-3057
BrandRS PRO
MYR28.62
Each
units
3/4 in R Male 3/4 in R Male 1.71in - Hexagon Nipple Hexagon - 3/4in 3/4in - Male Male - R (taper)
RS Stock No. 499-3237
BrandRS PRO
MYR11.426
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. 499-3518
BrandRS PRO
MYR105.26
Each
units
1 in G Female 1 in G Female 2.01in - Union Octagon Straight 1in 1in - Female Female - G (parallel)
RS Stock No. 499-3805
BrandRS PRO
MYR132.21
Each
units
2 in R Male 51.5 mm Barbed Male 3.46in - Hose Nipple Hexagon - 2in - - Male Male - R (taper)
RS Stock No. 499-3085
BrandRS PRO
MYR87.58
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)
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