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 metals 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
TWD537.00
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
TWD422.00
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
TWD383.00
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
TWD85.00
Each
units
3/8 in G Female 3/8 in G Female - - Socket - - 3/8in 3/8in - Female Female - G (parallel)
RS Stock No. 499-3350
BrandRS PRO
TWD595.00
Each
units
1-1/4 in G Female 1-1/4 in R Male - - Elbow Circular 90° 1-1/4in 1-1/4in - Female Male - G (parallel)
RS Stock No. 499-3366
BrandRS PRO
TWD705.00
Each
units
1-1/2 in G Female 1-1/2 in R Male - - Elbow Circular 90° 1-1/2in 1-1/2in - Female Male - R (taper)
RS Stock No. 499-3388
BrandRS PRO
TWD1,051.00
Each
units
2 in G Female 2 in R Male - - Elbow Circular 90° 2in 2in - Female Male - R (taper)
RS Stock No. 499-3473
BrandRS PRO
TWD134.00
Each
units
3/4 in R Male - 0.92in - Plug Hexagon - 3/4in - - Male - - R (taper)
RS Stock No. 826-7125
BrandRS PRO
TWD3,047.00
Each
units
2 in Rc Female 2 in Rc Female 3.39in - Union Decagon Straight 2in 2in - Female Female - Rc (taper)
RS Stock No. 499-3489
BrandRS PRO
TWD206.00
Each
units
1 in R Male - 1.06in - Plug Hexagon - 1in - - Male - - R (taper)
RS Stock No. 310-8624
Mfr. Part No.1855 13 13
BrandLegris
TWD431.00
Each
units
1/4 in G Female 1/4 in G Female - - Coupler Hexagon Straight 1/4in 1/4in - Female Female - G (parallel)
RS Stock No. 826-7059
BrandRS PRO
TWD282.00
Each
units
3/8 in R Male 3/8 in R Male 1.57in - Nipple Hexagon Straight 3/8in 3/8in - Male Male - R (taper)
RS Stock No. 826-7021
BrandRS PRO
TWD101.00
Each
units
1/4 in R Male - 0.67in - Hexagon Plug Hexagon Straight 1/4in - - Male - - R (taper)
RS Stock No. 826-7107
BrandRS PRO
TWD1,110.00
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. 499-3192
BrandRS PRO
TWD628.00
Each
units
2 in R Male 2 in R Male 2.15in - Hexagon Nipple Hexagon - 2in 2in - Male Male - R (taper)
RS Stock No. 458-6873
Mfr. Part No.1821 17 17
BrandLegris
TWD419.00
Each
units
3/8 in R Male 3/8 in R Male - - Coupler Hexagon Straight 3/8in 3/8in - Male Male - R (taper)
RS Stock No. 826-7129
BrandRS PRO
TWD1,401.00
Each
units
1/4 in R Male 1/4 in Rc Female 2.18in - Union Hexagon Straight 1/4in 1/4in - Male Female - R (taper)
RS Stock No. 826-7068
BrandRS PRO
TWD1,444.00
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. 826-7093
BrandRS PRO
TWD861.00
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)
RS Stock No. 499-3316
BrandRS PRO
TWD160.00
Each
units
3/8 in G Female 3/8 in R Male - - Elbow Circular 90° 3/8in 3/8in - Female Male - R (taper)