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. 499-3748
BrandRS PRO
TWD193.00
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. 826-6946
BrandRS PRO
TWD947.00
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. 499-3344
BrandRS PRO
TWD434.00
Each
units
1 in G Female 1 in R Male - - Elbow Circular 90° 1in 1in - Female Male - R (taper)
RS Stock No. 826-7021
BrandRS PRO
TWD105.00
Each
units
1/4 in R Male - 0.67in - Hexagon Plug Hexagon Straight 1/4in - - Male - - R (taper)
RS Stock No. 826-7096
BrandRS PRO
TWD1,049.00
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. 826-6936
BrandRS PRO
TWD3,653.00
Each
units
1-1/2 in G Female 1-1/2 in G Female - - Elbow Circular 90° 1-1/2in 1-1/2in - Female Female - G (parallel)
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. 826-7018
BrandRS PRO
TWD1,565.00
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. 310-8630
Mfr. Part No.1855 17 17
BrandLegris
TWD546.00
Each
units
3/8 in G Female 3/8 in G Female - - Coupler Hexagon Straight 3/8in 3/8in - Female Female - G (parallel)
RS Stock No. 499-3704
BrandRS PRO
TWD1,754.00
Each
units
2 in G Female 2 in G Female 2.42in - Union Decagon Straight 2in 2in - Female Female - G (parallel)
RS Stock No. 826-6992
BrandRS PRO
TWD178.00
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. 499-3467
BrandRS PRO
TWD108.00
Each
units
1/2 in R Male - 0.89in - Plug Hexagon - 1/2in - - Male - - R (taper)
RS Stock No. 499-3647
BrandRS PRO
TWD304.00
Each
units
1-1/4 in R Male - 1.2in - Plug Hexagon - 1-1/4in - - Male - - R (taper)
RS Stock No. 499-3518
BrandRS PRO
TWD795.00
Each
units
1 in G Female 1 in G Female 2.01in - Union Octagon Straight 1in 1in - Female Female - G (parallel)
RS Stock No. 499-2975
BrandRS PRO
TWD368.00
Each
units
1 in G Female 1 in G Female - - Elbow - 90° 1in 1in - Female Female - G (parallel)
RS Stock No. 499-2981
BrandRS PRO
TWD201.00
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. 499-3029
BrandRS PRO
TWD201.00
Each
units
3/4 in G Female 3/4 in G Female - - Socket - - 3/4in 3/4in - Female Female - G (parallel)
RS Stock No. 295-2795
Mfr. Part No.1823 16 21
BrandLegris
TWD1,139.00
Each
units
1/2 in R Male 16 mm Barbed Male - - Tailpiece Adapter Hexagon Straight 1/2in - - Male Male - R (taper)
RS Stock No. 826-7144
BrandRS PRO
TWD4,327.00
Each
units
1 in R Male 1 in Rc Female 3.39in - Union Octagon Straight 1in 1in - Male Female - R (taper)
RS Stock No. 499-2880
BrandRS PRO
TWD125.00
Each
units
1/4 in G Female 1/4 in G Female 1.54in 1/4 in G Female Tee Circular Tee 1/4in 1/4in 1/4 Female Female Female G (parallel)