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. 295-2767
Mfr. Part No.1823 07 13
BrandLegris
TWD562.00
Each
units
1/4 in R Male 7 mm Barbed Male - - Tailpiece Adapter Hexagon Straight 1/4in - - Male Male - R (taper)
RS Stock No. 499-2919
BrandRS PRO
TWD89.00
Each
units
3/8 in G Female 3/8 in G Female - - Socket - - 3/8in 3/8in - Female Female - G (parallel)
RS Stock No. 310-8668
Mfr. Part No.1863 17 13
BrandLegris
TWD421.00
Each
units
3/8 in R Male 1/4 in G Female - - Reducer Hexagon Straight 3/8in 1/4in - Male Female - R (taper)
RS Stock No. 499-3495
BrandRS PRO
TWD401.00
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. 826-7087
BrandRS PRO
TWD272.00
Each
units
1/2 in R Male 1/4 in Rc Female 0.75in - Bush Hexagon Straight 1/2in 1/4in - Male Female - R (taper)
RS Stock No. 499-3142
BrandRS PRO
TWD517.00
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. 222-6591
BrandRS PRO
TWD467.00
Each
units
1/2 in NPT Male - - - Plug Hexagon - 1/2in - - Male - - NPT (taper)
RS Stock No. 826-7090
BrandRS PRO
TWD1,488.00
Each
units
2 in R Male 1 in Rc Female 31mm - Bush Hexagon Straight 2in 1in - Male Female - R (taper)
RS Stock No. 826-7012
BrandRS PRO
TWD2,316.00
Each
units
2 in Rc Female 2 in Rc Female 3.39in - Coupler Circular Straight 2in 2in - Female Female - Rc (taper)
RS Stock No. 499-3114
BrandRS PRO
TWD754.00
Each
units
1-1/4 in G Female 1-1/4 in G Female 3.35in 1-1/4 in G Female Tee Circular Tee 1-1/4in 1-1/4in 1-1/4 Female Female Female G (parallel)
RS Stock No. 499-3681
BrandRS PRO
TWD944.00
Each
units
1-1/4 in G Female 1-1/4 in G Female 2.28in - Union Decagon Straight 1-1/4in 1-1/4in - Female Female - G (parallel)
RS Stock No. 222-6614
BrandRS PRO
TWD741.00
Each
units
3/4 in NPT Male - - - Plug Hexagon - 3/4in - - Male - - NPT (taper)
RS Stock No. 826-7125
BrandRS PRO
TWD3,191.00
Each
units
2 in Rc Female 2 in Rc Female 3.39in - Union Decagon Straight 2in 2in - Female Female - Rc (taper)
RS Stock No. 499-3338
BrandRS PRO
TWD288.00
Each
units
3/4 in G Female 3/4 in R Male - - Elbow Circular 90° 3/4in 3/4in - Female Male - R (taper)
RS Stock No. 826-7071
BrandRS PRO
TWD3,776.00
Each
units
2 in R Male 2 in R Male 2.8in - Nipple Hexagon Straight 2in 2in - Male Male - R (taper)
RS Stock No. 499-3748
BrandRS PRO
TWD194.00
Each
units
3/8 in R Male 10 mm Barbed Male 1.93in - Hose Nipple Hexagon - 3/8in - - Male Male - R (taper)
RS Stock No. 295-2751
Mfr. Part No.0285 21 00
BrandLegris
TWD359.50
Each (In a Pack of 2)
units
1/2 in R Male - - - Plug Hexagon - 1/2in - - Male - - R (taper)
RS Stock No. 499-3164
BrandRS PRO
TWD808.00
Each
units
2 in G Female 2 in G Female - - Socket - - 2in 2in - Female Female - G (parallel)
RS Stock No. 499-3760
BrandRS PRO
TWD327.00
Each
units
3/4 in R Male 20 mm Barbed Male 2.36in - Hose Nipple Hexagon - 3/4in - - Male Male - R (taper)
RS Stock No. 826-7093
BrandRS PRO
TWD902.00
Each
units
1-1/4 in R Male 1 in Rc Female 1.11in - Bush Hexagon Straight 1-1/4in 1in - Male Female - R (taper)