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
HK$40.36
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. 310-8674
Mfr. Part No.1863 21 13
BrandLegris
HK$137.05
Each
units
1/2 in R Male 1/4 in G Female - - Reducer Hexagon Straight 1/2in 1/4in - Male Female - R (taper)
RS Stock No. 458-6867
Mfr. Part No.1821 13 13
BrandLegris
HK$89.17
Each
units
1/4 in R Male 1/4 in R Male - - Coupler Hexagon Straight 1/4in 1/4in - Male Male - R (taper)
RS Stock No. 310-8652
Mfr. Part No.1863 13 10
BrandLegris
HK$101.14
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. 310-8696
Mfr. Part No.1861 10 13
BrandLegris
HK$125.74
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. 295-2773
Mfr. Part No.1823 10 13
BrandLegris
HK$137.50
Each
units
1/4 in R Male 10 mm Barbed Male - - Tailpiece Adapter Hexagon Straight 1/4in - - Male Male - R (taper)
RS Stock No. 499-3007
BrandRS PRO
HK$95.64
Each
units
1 in G Female 1 in G Female 2.76in 1 in G Female Tee Circular Tee 1in 1in 1 Female Female Female G (parallel)
RS Stock No. 222-6591
BrandRS PRO
HK$75.13
Each
units
1/2 in NPT Male - - - Plug Hexagon - 1/2in - - Male - - NPT (taper)
RS Stock No. 499-3518
BrandRS PRO
HK$210.00
Each
units
1 in G Female 1 in G Female 2.01in - Union Octagon Straight 1in 1in - Female Female - G (parallel)
RS Stock No. 222-6620
BrandRS PRO
HK$160.60
Each
units
1 in NPT Male - - - Plug Hexagon - 1in - - Male - - NPT (taper)
RS Stock No. 499-3754
BrandRS PRO
HK$56.02
Each
units
1/2 in R Male 13 mm Barbed Male 2.22in - Hose Nipple Hexagon - 1/2in - - Male Male - R (taper)
RS Stock No. 222-6614
BrandRS PRO
HK$132.66
Each
units
3/4 in NPT Male - - - Plug Hexagon - 3/4in - - Male - - NPT (taper)
RS Stock No. 310-8719
Mfr. Part No.1823 07 10
BrandLegris
HK$121.55
Each
units
1/8 in R Male 7 mm Barbed Male - - Tailpiece Adapter Hexagon Straight 1/8in - - Male Male - R (taper)
RS Stock No. 499-3502
BrandRS PRO
HK$103.37
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. 499-3489
BrandRS PRO
HK$35.96
Each
units
1 in R Male - 1.06in - Plug Hexagon - 1in - - Male - - R (taper)
RS Stock No. 499-3445
BrandRS PRO
HK$22.51
Each
units
1/2 in R Male 3/8 in G Female 0.87in - Bush Hexagon - 1/2in 3/8in - Male Female - R (taper)
RS Stock No. 499-3732
BrandRS PRO
HK$25.63
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. 499-3782
BrandRS PRO
HK$92.54
Each
units
1-1/4 in R Male 32 mm Barbed Male 2.76in - Hose Nipple Hexagon - 1-1/4in - - Male Male - R (taper)
RS Stock No. 499-3776
BrandRS PRO
HK$78.77
Each
units
1 in R Male 25 mm Barbed Male 2.72in - Hose Nipple Hexagon - 1in - - Male Male - R (taper)
RS Stock No. 499-2931
BrandRS PRO
HK$17.75
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)
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