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. 826-7138
BrandRS PRO
TWD1,282.00
Each
units
3/8 in R Male 3/8 in Rc Female 2.36in - Union Octagon Straight 3/8in 3/8in - Male Female - R (taper)
RS Stock No. 499-3344
BrandRS PRO
TWD434.00
Each
units
1 in G Female 1 in R Male - - Elbow Circular 90° 1in 1in - Female Male - R (taper)
RS Stock No. 826-7084
BrandRS PRO
TWD575.00
Each
units
1 in R Male 3/4 in Rc Female 0.99in - Bush Hexagon Straight 1in 3/4in - Male Female - R (taper)
RS Stock No. 458-6889
Mfr. Part No.1821 21 21
BrandLegris
TWD655.00
Each
units
1/2 in R Male 1/2 in R Male - - Coupler Hexagon Straight 1/2in 1/2in - Male Male - R (taper)
RS Stock No. 499-3546
BrandRS PRO
TWD225.00
Each
units
1 in R Male 3/4 in G Female 1.06in - Bush Hexagon - 1in 3/4in - Male Female - R (taper)
RS Stock No. 826-6996
BrandRS PRO
TWD244.00
Each
units
3/8 in Rc Female 3/8 in Rc Female 1.5in - Coupler Circular Straight 3/8in 3/8in - Female Female - Rc (taper)
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. 499-3007
BrandRS PRO
TWD526.00
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. 499-3518
BrandRS PRO
TWD795.00
Each
units
1 in G Female 1 in G Female 2.01in - Union Octagon Straight 1in 1in - Female Female - G (parallel)
RS Stock No. 295-2745
Mfr. Part No.0285 17 00
BrandLegris
TWD340.00
Each (In a Pack of 2)
units
3/8 in R Male - - - Plug Hexagon - 3/8in - - Male - - R (taper)
RS Stock No. 499-3726
BrandRS PRO
TWD775.00
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. 826-7012
BrandRS PRO
TWD2,316.00
Each
units
2 in Rc Female 2 in Rc Female 3.39in - Coupler Circular Straight 2in 2in - Female Female - Rc (taper)
RS Stock No. 499-3057
BrandRS PRO
TWD215.00
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. 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. 499-3580
BrandRS PRO
TWD461.00
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. 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)
RS Stock No. 499-3316
BrandRS PRO
TWD167.00
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. 826-7065
BrandRS PRO
TWD1,117.00
Each
units
1 in R Male 1 in R Male 2.36in - Nipple Hexagon Straight 1in 1in - Male Male - R (taper)
RS Stock No. 458-6823
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. 826-7107
BrandRS PRO
TWD1,163.00
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)