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. 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. 499-2919
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. 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. 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. 499-2953
BrandRS PRO
TWD153.00
Each
units
1/2 in G Female 1/2 in G Female - - Elbow - 90° 1/2in 1/2in - Female Female - G (parallel)
RS Stock No. 826-7028
BrandRS PRO
TWD220.00
Each
units
1/2 in R Male - 0.86in - Hexagon Plug Hexagon Straight 1/2in - - Male - - R (taper)
RS Stock No. 499-3120
BrandRS PRO
TWD825.00
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. 499-2969
BrandRS PRO
TWD214.00
Each
units
3/4 in G Female 3/4 in G Female - - Elbow - 90° 3/4in 3/4in - Female Female - G (parallel)
RS Stock No. 499-3136
BrandRS PRO
TWD452.00
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. 499-3502
BrandRS PRO
TWD537.00
Each
units
3/4 in G Female 3/4 in G Female 1.73in - Union Octagon Straight 3/4in 3/4in - Female Female - G (parallel)
RS Stock No. 499-3237
BrandRS PRO
TWD86.20
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. 826-7030
BrandRS PRO
TWD491.00
Each
units
1 in R Male - 1.14in - Hexagon Plug Hexagon Straight 1in - - Male - - R (taper)
RS Stock No. 499-3057
BrandRS PRO
TWD217.00
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. 458-6823
Mfr. Part No.1817 00 13
BrandLegris
TWD493.00
Each
units
1/4 in G Female - - - Bulkhead Adapter Hexagon Straight 1/4in - - Female - - G (parallel)
RS Stock No. 499-2975
BrandRS PRO
TWD369.00
Each
units
1 in G Female 1 in G Female - - Elbow - 90° 1in 1in - Female Female - G (parallel)
RS Stock No. 826-7062
BrandRS PRO
TWD2,471.00
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. 295-2723
Mfr. Part No.0285 10 00
BrandLegris
TWD207.00
Each (In a Pack of 2)
units
1/8 in R Male - - - Plug Hexagon - 1/8in - - Male - - R (taper)
RS Stock No. 499-2931
BrandRS PRO
TWD79.00
Each
units
1/4 in R Male 1/4 in R Male 1.26in - Hexagon Nipple Hexagon - 1/4in 1/4in - Male Male - 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)