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. 499-3316
BrandRS PRO
kr 44,91
Each
Units
3/8 in G Female 3/8 in R Male - - Elbow Circular 90° 3/8in 3/8in - Female Male - R (taper)
RS Stock No. 826-7078
BrandRS PRO
kr 58,10
Each
Units
3/8 in R Male 1/4 in Rc Female 0.67in - Bush Hexagon Straight 3/8in 1/4in - Male Female - R (taper)
RS Stock No. 826-7056
BrandRS PRO
kr 158,70
Each
Units
3/4 in R Male 3/4 in R Male 2.05in - Nipple Hexagon Straight 3/4in 3/4in - Male Male - R (taper)
RS Stock No. 499-3029
BrandRS PRO
kr 53,87
Each
Units
3/4 in G Female 3/4 in G Female - - Socket - - 3/4in 3/4in - Female Female - G (parallel)
RS Stock No. 499-3495
BrandRS PRO
kr 107,14
Each
Units
1/2 in G Female 1/2 in G Female 1.52in - Union Octagon Straight 1/2in 1/2in - Female Female - G (parallel)
RS Stock No. 499-3041
BrandRS PRO
kr 41,89
Each
Units
1/2 in R Male 1/2 in R Male 1.65in - Hexagon Nipple Hexagon - 1/2in 1/2in - Male Male - R (taper)
RS Stock No. 499-3530
BrandRS PRO
kr 65,76
Each
Units
1 in R Male 1/2 in G Female 1.06in - Bush Hexagon - 1in 1/2in - Male Female - R (taper)
RS Stock No. 499-3170
BrandRS PRO
kr 112,58
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. 458-6867
Mfr. Part No.1821 13 13
BrandLegris
kr 111,51
Each
Units
1/4 in R Male 1/4 in R Male - - Coupler Hexagon Straight 1/4in 1/4in - Male Male - R (taper)
RS Stock No. 222-6591
BrandRS PRO
kr 115,20
Each
Units
1/2 in NPT Male - - - Plug Hexagon - 1/2in - - Male - - NPT (taper)
RS Stock No. 499-2975
BrandRS PRO
kr 79,75
Each
Units
1 in G Female 1 in G Female - - Elbow - 90° 1in 1in - Female Female - G (parallel)
RS Stock No. 826-7113
BrandRS PRO
kr 518,99
Each
Units
1-1/4 in Rc Female 1-1/4 in Rc Female 2.8in - Union Decagon Straight 1-1/4in 1-1/4in - Female Female - Rc (taper)
RS Stock No. 295-2767
Mfr. Part No.1823 07 13
BrandLegris
kr 167,38
Each
Units
1/4 in R Male 7 mm Barbed Male - - Tailpiece Adapter Hexagon Straight 1/4in - - Male Male - R (taper)
RS Stock No. 826-7062
BrandRS PRO
kr 615,06
Each
Units
1-1/2 in R Male 1-1/2 in R Male 2.68in - Nipple Hexagon Straight 1-1/2in 1-1/2in - Male Male - R (taper)
RS Stock No. 222-6614
BrandRS PRO
kr 181,86
Each
Units
3/4 in NPT Male - - - Plug Hexagon - 3/4in - - Male - - NPT (taper)
RS Stock No. 826-6968
BrandRS PRO
kr 141,88
Each
Units
1/4 in G Female 1/4 in G Female 1.96in 1/4 in G Female Tee Circular Tee 1/4in 1/4in 1/4 Female Female Female G (parallel)
RS Stock No. 310-8646
Mfr. Part No.1855 21 21
BrandLegris
kr 226,96
Each
Units
1/2 in G Female 1/2 in G Female - - Coupler Hexagon Straight 1/2in 1/2in - Female Female - G (parallel)
RS Stock No. 458-6839
Mfr. Part No.1817 00 17
BrandLegris
kr 172,40
Each
Units
3/8 in G Female - - - Bulkhead Adapter Hexagon Straight 3/8in - - Female - - G (parallel)
RS Stock No. 310-8696
Mfr. Part No.1861 10 13
BrandLegris
kr 147,97
Each
Units
1/8 in R Male 1/4 in G Female - - Increaser Hexagon Straight 1/8in 1/4in - Male Female - R (taper)
RS Stock No. 295-2723
Mfr. Part No.0285 10 00
BrandLegris
kr 74,82
Each (In a Pack of 2)
Units
1/8 in R Male - - - Plug Hexagon - 1/8in - - Male - - R (taper)
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