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. 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. 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. 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. 499-3726
BrandRS PRO
TWD771.00
Each
units
2 in R Male 1/2 in G Female 1.32in - Bush Hexagon - 2in 1/2in - Male Female - R (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. 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. 499-3732
BrandRS PRO
TWD149.00
Each
units
1/4 in R Male 8 mm Barbed Male 1.69in - Hose Nipple Hexagon - 1/4in - - Male Male - R (taper)
RS Stock No. 222-6636
BrandRS PRO
TWD845.00
Each
units
1/2 in NPT Male 1/2 in NPT Male - - Nipple Hexagon - 1/2in 1/2in - Male Male - NPT (taper)
RS Stock No. 499-3760
BrandRS PRO
TWD326.00
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. 826-7065
BrandRS PRO
TWD1,113.00
Each
units
1 in R Male 1 in R Male 2.36in - Nipple Hexagon Straight 1in 1in - Male Male - R (taper)
RS Stock No. 458-6845
Mfr. Part No.1817 00 21
BrandLegris
TWD792.00
Each
units
1/2 in G Female - - - Bulkhead Adapter Hexagon Straight 1/2in - - 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. 826-7116
BrandRS PRO
TWD1,530.00
Each
units
3/4 in Rc Female 3/4 in Rc Female 2.24in - Union Octagon Straight 3/4in 3/4in - Female Female - Rc (taper)
RS Stock No. 499-3417
BrandRS PRO
TWD243.00
Each
units
1/4 in G Female 1/4 in G Female 1.36in - Union Hexagon Straight 1/4in 1/4in - Female Female - G (parallel)
RS Stock No. 499-3580
BrandRS PRO
TWD459.00
Each
units
1-1/2 in R Male 1/2 in G Female 1.18in - Bush Hexagon - 1-1/2in 1/2in - Male Female - R (taper)
RS Stock No. 826-6946
BrandRS PRO
TWD944.00
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. 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. 826-7093
BrandRS PRO
TWD899.00
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)