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. 499-3495
BrandRS PRO
MYR53.07
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. 499-3063
BrandRS PRO
MYR41.23
Each
units
1 in R Male 1 in R Male 1.93in - Hexagon Nipple Hexagon - 1in 1in - Male Male - R (taper)
RS Stock No. 499-2852
BrandRS PRO
MYR13.92
Each
units
1/4 in G Female 1/4 in G Female - - Elbow - 90° 1/4in 1/4in - Female Female - G (parallel)
RS Stock No. 499-3221
BrandRS PRO
MYR9.374
Each (In a Pack of 5)
units
1/4 in R Male 1/4 in R Male 1.57in - Barrel Nipple Circular - 1/4in 1/4in - Male Male - R (taper)
RS Stock No. 222-6636
BrandRS PRO
MYR112.22
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. 499-2919
BrandRS PRO
MYR11.78
Each
units
3/8 in G Female 3/8 in G Female - - Socket - - 3/8in 3/8in - Female Female - G (parallel)
RS Stock No. 499-2981
BrandRS PRO
MYR26.66
Each
units
1/2 in G Female 1/2 in G Female 2.17in 1/2 in G Female Tee Circular Tee 1/2in 1/2in 1/2 Female Female Female G (parallel)
RS Stock No. 826-6983
BrandRS PRO
MYR342.19
Each
units
1 in G Female 1 in G Female 3.46in 1 in G Female Tee Circular Tee 1in 1in 1 Female Female Female G (parallel)
RS Stock No. 826-7046
BrandRS PRO
MYR211.30
Each
units
2 in R Male - 1.58in - Hexagon Plug Hexagon Straight 2in - - Male - - R (taper)
RS Stock No. 499-3271
BrandRS PRO
MYR76.04
Each
units
1-1/4 in R Male 1-1/4 in R Male 3.15in - Barrel Nipple Circular - 1-1/4in 1-1/4in - Male Male - R (taper)
RS Stock No. 499-3079
BrandRS PRO
MYR65.69
Each
units
1-1/4 in G Female 1-1/4 in G Female - - Elbow - 90° 1-1/4in 1-1/4in - Female Female - G (parallel)
RS Stock No. 499-3164
BrandRS PRO
MYR106.92
Each
units
2 in G Female 2 in G Female - - Socket - - 2in 2in - Female Female - G (parallel)
RS Stock No. 499-2997
BrandRS PRO
MYR41.00
Each
units
3/4 in G Female 3/4 in G Female 2.36in 3/4 in G Female Tee Circular Tee 3/4in 3/4in 3/4 Female Female Female G (parallel)
RS Stock No. 499-3782
BrandRS PRO
MYR82.06
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. 499-3798
BrandRS PRO
MYR88.78
Each
units
1-1/2 in R Male 40 mm Barbed Male 3.15in - Hose Nipple Hexagon - 1-1/2in - - Male Male - R (taper)
RS Stock No. 826-7028
BrandRS PRO
MYR29.08
Each
units
1/2 in R Male - 0.86in - Hexagon Plug Hexagon Straight 1/2in - - Male - - R (taper)
RS Stock No. 826-7074
BrandRS PRO
MYR27.10
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. 826-7018
BrandRS PRO
MYR206.99
Each
units
1-1/2 in Rc Female 1-1/2 in Rc Female 3.11in - Coupler Circular Straight 1-1/2in 1-1/2in - Female Female - Rc (taper)
RS Stock No. 826-7093
BrandRS PRO
MYR119.40
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. 826-7065
BrandRS PRO
MYR147.87
Each
units
1 in R Male 1 in R Male 2.36in - Nipple Hexagon Straight 1in 1in - Male Male - R (taper)
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