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
TWD566.00
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
TWD424.00
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
TWD400.00
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. 826-7068
BrandRS PRO
TWD1,507.00
Each
units
1-1/4 in R Male 1-1/4 in R Male 2.6in - Nipple Hexagon Straight 1-1/4in 1-1/4in - Male Male - R (taper)
RS Stock No. 826-7071
BrandRS PRO
TWD3,761.00
Each
units
2 in R Male 2 in R Male 2.8in - Nipple Hexagon Straight 2in 2in - Male Male - R (taper)
RS Stock No. 826-7100
BrandRS PRO
TWD745.00
Each
units
1/4 in Rc Female 1/4 in Rc Female 1.63in - Union Hexagon Straight 1/4in 1/4in - Female Female - Rc (taper)
RS Stock No. 499-3136
BrandRS PRO
TWD450.00
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. 499-3669
BrandRS PRO
TWD393.00
Each
units
1-1/2 in R Male - 1.21in - Plug Hexagon - 1-1/2in - - Male - - R (taper)
RS Stock No. 826-6920
BrandRS PRO
TWD727.00
Each
units
3/4 in G Female 3/4 in G Female - - Elbow Circular 90° 3/4in 3/4in - Female Female - G (parallel)
RS Stock No. 826-7074
BrandRS PRO
TWD204.00
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. 499-3243
BrandRS PRO
TWD121.60
Each (In a Pack of 5)
units
1/2 in R Male 1/2 in R Male 2.36in - Barrel Nipple Circular - 1/2in 1/2in - Male Male - R (taper)
RS Stock No. 499-3603
BrandRS PRO
TWD425.00
Each
units
1-1/2 in R Male 3/4 in G Female 1.18in - Bush Hexagon - 1-1/2in 3/4in - Male Female - R (taper)
RS Stock No. 826-7062
BrandRS PRO
TWD2,462.00
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. 499-3221
BrandRS PRO
TWD70.60
Each (In a Pack of 5)
units
1/4 in R Male 1/4 in R Male 1.57in - Barrel Nipple Circular - 1/4in 1/4in - Male Male - R (taper)
RS Stock No. 826-7107
BrandRS PRO
TWD1,158.00
Each
units
1/2 in Rc Female 1/2 in Rc Female 1.93in - Union Octagon Straight 1/2in 1/2in - Female Female - Rc (taper)
RS Stock No. 826-7131
BrandRS PRO
TWD2,315.00
Each
units
1/2 in R Male 1/2 in Rc Female 2.68in - Union Octagon Straight 1/2in 1/2in - Male Female - R (taper)
RS Stock No. 310-8652
Mfr. Part No.1863 13 10
BrandLegris
TWD394.00
Each
units
1/4 in R Male 1/8 in G Female - - Reducer Hexagon Straight 1/4in 1/8in - Male Female - 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. 499-3142
BrandRS PRO
TWD516.00
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)