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. 499-3732
BrandRS PRO
MYR27.06
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. 499-2880
BrandRS PRO
MYR16.97
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)
RS Stock No. 499-3748
BrandRS PRO
MYR24.00
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. 458-6845
Mfr. Part No.1817 00 21
BrandLegris
MYR98.42
Each
units
1/2 in G Female - - - Bulkhead Adapter Hexagon Straight 1/2in - - Female - - G (parallel)
RS Stock No. 826-6968
BrandRS PRO
MYR48.85
Each
units
1/4 in G Female 1/4 in G Female 1.96in 1/4 in G Female Tee Circular Tee 1/4in 1/4in 1/4 Female Female Female G (parallel)
RS Stock No. 826-7068
BrandRS PRO
MYR145.14
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
MYR333.32
Each
units
2 in R Male 2 in R Male 2.8in - Nipple Hexagon Straight 2in 2in - Male Male - R (taper)
RS Stock No. 499-3041
BrandRS PRO
MYR18.35
Each
units
1/2 in R Male 1/2 in R Male 1.65in - Hexagon Nipple Hexagon - 1/2in 1/2in - Male Male - R (taper)
RS Stock No. 499-3776
BrandRS PRO
MYR97.25
Each
units
1 in R Male 25 mm Barbed Male 2.72in - Hose Nipple Hexagon - 1in - - Male Male - R (taper)
RS Stock No. 458-6823
Mfr. Part No.1817 00 13
BrandLegris
MYR68.01
Each
units
1/4 in G Female - - - Bulkhead Adapter Hexagon Straight 1/4in - - Female - - G (parallel)
RS Stock No. 826-7062
BrandRS PRO
MYR218.13
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. 826-7040
BrandRS PRO
MYR24.77
Each
units
1/4 in R Male 1/4 in R Male 1.42in - Nipple Hexagon Straight 1/4in 1/4in - Male Male - R (taper)
RS Stock No. 826-7052
BrandRS PRO
MYR36.86
Each
units
1/2 in R Male 1/2 in R Male 1.89in - Nipple Hexagon Straight 1/2in 1/2in - Male Male - R (taper)
RS Stock No. 499-2931
BrandRS PRO
MYR10.45
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. 499-2903
BrandRS PRO
MYR8.20
Each
units
1/4 in G Female 1/4 in G Female - - Socket - - 1/4in 1/4in - Female Female - G (parallel)
RS Stock No. 499-3316
BrandRS PRO
MYR18.65
Each
units
3/8 in G Female 3/8 in R Male - - Elbow Circular 90° 3/8in 3/8in - Female Male - R (taper)
RS Stock No. 310-8696
Mfr. Part No.1861 10 13
BrandLegris
MYR65.83
Each
units
1/8 in R Male 1/4 in G Female - - Increaser Hexagon Straight 1/8in 1/4in - Male Female - R (taper)
RS Stock No. 310-8652
Mfr. Part No.1863 13 10
BrandLegris
MYR54.77
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. 499-3013
BrandRS PRO
MYR23.05
Each
units
1/2 in G Female 1/2 in G Female - - Socket - - 1/2in 1/2in - Female Female - G (parallel)
RS Stock No. 222-6636
BrandRS PRO
MYR80.87
Each
units
1/2 in NPT Male 1/2 in NPT Male - - Nipple Hexagon - 1/2in 1/2in - Male Male - NPT (taper)
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