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. 826-6992
BrandRS PRO
SGD7.97
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. 499-3530
BrandRS PRO
SGD11.07
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. 499-3164
BrandRS PRO
SGD34.86
Each
units
2 in G Female 2 in G Female - - Socket - - 2in 2in - Female Female - G (parallel)
RS Stock No. 826-7024
BrandRS PRO
SGD4.91
Each
units
3/8 in R Male - 0.82in - Hexagon Plug Hexagon Straight 3/8in - - Male - - R (taper)
RS Stock No. 499-3063
BrandRS PRO
SGD14.03
Each
units
1 in R Male 1 in R Male 1.93in - Hexagon Nipple Hexagon - 1in 1in - Male Male - R (taper)
RS Stock No. 826-7074
BrandRS PRO
SGD9.21
Each
units
1/4 in R Male Rc Female 0.55in - Bush Hexagon Straight 1/4in 1/8in - Male Female - R (taper)
RS Stock No. 499-3366
BrandRS PRO
SGD31.85
Each
units
1-1/2 in G Female 1-1/2 in R Male - - Elbow Circular 90° 1-1/2in 1-1/2in - Female Male - R (taper)
RS Stock No. 499-3338
BrandRS PRO
SGD8.47
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. 499-3568
BrandRS PRO
SGD18.45
Each
units
1-1/4 in R Male 3/4 in G Female 1.18in - Bush Hexagon - 1-1/4in 3/4in - Male Female - R (taper)
RS Stock No. 826-7034
BrandRS PRO
SGD29.11
Each
units
1-1/4 in R Male - 1.38in - Hexagon Plug Hexagon Straight 1-1/4in - - Male - - R (taper)
RS Stock No. 499-3697
BrandRS PRO
SGD51.83
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. 826-7141
BrandRS PRO
SGD247.77
Each
units
1-1/2 in R Male 1-1/2 in Rc Female 3.96in - Union Decagon Straight 1-1/2in 1-1/2in - Male Female - R (taper)
RS Stock No. 499-2981
BrandRS PRO
SGD6.78
Each
units
1/2 in G Female 1/2 in G Female 2.17in 1/2 in G Female Tee Circular Tee 1/2in 1/2in 1/2 Female Female Female G (parallel)
RS Stock No. 826-7002
BrandRS PRO
SGD14.52
Each
units
3/4 in Rc Female 3/4 in Rc Female 2.01in - Coupler Circular Straight 3/4in 3/4in - Female Female - Rc (taper)
RS Stock No. 499-2975
BrandRS PRO
SGD16.62
Each
units
1 in G Female 1 in G Female - - Elbow - 90° 1in 1in - Female Female - G (parallel)
RS Stock No. 826-7006
BrandRS PRO
SGD39.27
Each
units
1 in Rc Female 1 in Rc Female 2.36in - Coupler Circular Straight 1in 1in - Female Female - Rc (taper)
RS Stock No. 499-3170
BrandRS PRO
SGD18.29
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. 499-3798
BrandRS PRO
SGD26.25
Each
units
1-1/2 in R Male 40 mm Barbed Male 3.15in - Hose Nipple Hexagon - 1-1/2in - - Male Male - R (taper)
RS Stock No. 826-7018
BrandRS PRO
SGD67.49
Each
units
1-1/2 in Rc Female 1-1/2 in Rc Female 3.11in - Coupler Circular Straight 1-1/2in 1-1/2in - Female Female - Rc (taper)
RS Stock No. 499-2969
BrandRS PRO
SGD9.63
Each
units
3/4 in G Female 3/4 in G Female - - Elbow - 90° 3/4in 3/4in - Female Female - G (parallel)