316 Stainless Steel Fittings: Corrosion and Pressure Proof

316 stainless steel fittings

316 stainless steel fittings: High resistance for your installations

For your most demanding projects, opt for extreme durability with our range of 316 stainless steel fittings (marine stainless steel). Designed to resist corrosion, harsh chemicals, and high temperatures, these fittings are the ideal solution for the industrial, agricultural, or marine sectors. Unlike standard solutions, 316 stainless steel guarantees exceptional longevity even in saline or corrosive environments.

Discover a wide selection of components: nipples, elbows, tees, valves and high-precision threaded fittings . Whether you work on drinking water, fuel or industrial fluid circuits, our stainless steel fittings ensure a perfect seal and unfailing robustness. Invest in professional quality for a reliable, secure and maintenance-free installation over the long term.

Technical excellence at your fingertips: order your 316 stainless steel fittings and benefit from certified expertise!

Not sure which fitting you need? Tell us what you have, we show you what screws onto it — live prices and stock.

Pipe thread chart: inch / mm conversion (BSP, 15/21, 20/27, S60x6)

A “1/2 inch” thread measures 20.96 mm, not 12.7: in plumbing, the inch size is not converted, it is read from a chart. Here you will find the inch / mm correspondence of every common thread (BSP or “gas thread”, French names 15/21 · 20/27 · 26/34, NPT, S60x6 IBC tanks, Guillemin, Camlock, PVC), a tool that identifies your thread and the fitting that goes with it, and the pitfalls to avoid.

Which thread do you have? Which fitting do you need?

No need to know the name of your thread. Tell us what you need to connect to, or type what you know (“20/27”, “3/4 inch”, “S60x6”, “26.4 mm”): we identify the thread and show you the fittings that go with it. Dimensions according to ISO 228, ISO 7 and ASME B1.20.1.

20/27 · 26/34BSP / gas S60x6 · S100x8Camlock Guillemin DNNPT
✔ Shipped next working day from our stock✔ 4.5/5 from more than 6,400 customer reviews✔ Not sure? Describe what you need, we will find the fitting with you⎙ Printable thread gauge (PDF, actual size)

No need to know the name of your thread. Just answer the question: what do you need to connect to?

You already know the name of your thread? Type it the way you say it: 20/27, 26/34, 3/4 inch, S60x6… everything works.

Examples:

Tell us what you have and what you want to get: we look for the matching fitting in our catalogue.

Keeps only parts whose material is known and matches, for every part of the solution.
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45 ° female / female elbow 316 stainless steel45° Female/Female Elbow in Stainless Steel 316
      €9.61i.e. €8.01 excl. VAT
      45 ° female / female elbow 316 stainless steel45° Female/Female Elbow in Stainless Steel 316
          €9.61i.e. €8.01 excl. VAT
          45 ° female / female elbow 316 stainless steel45° Female/Female Elbow in Stainless Steel 316
              The 45° female/female elbow Ezfitt in stainless steel 316 (reference 8041) is designed for demanding professional applications. Made from AISI 316 stainless steel, it resists corrosion and extreme temperatures (-20 to +220°C). Compliant with ISO 4144 standard, this fitting supports pressures up to 20 bars and is easy to install thanks to...
              €9.61i.e. €8.01 excl. VAT
              Mixed items
              45 ° female / female elbow 316 stainless steel45° Female/Female Elbow in Stainless Steel 316
                  The 45° female/female elbow Ezfitt in stainless steel 316 (reference 8041) is designed for demanding professional applications. Made from AISI 316 stainless steel, it resists corrosion and extreme temperatures (-20 to +220°C). Compliant with ISO 4144 standard, this fitting supports pressures up to 20 bars and is easy to install thanks to...
                  Mixed items
                  €9.61i.e. €8.01 excl. VAT
                  Threaded stainless steel strainer ISO 228-1 | Pump FiltrationFiltration Strainer Only for Pump and Tank | ISO 228-1 Standard
                      €5.22i.e. €4.35 excl. VAT
                      Threaded stainless steel strainer ISO 228-1 | Pump FiltrationFiltration Strainer Only for Pump and Tank | ISO 228-1 Standard
                          €5.22i.e. €4.35 excl. VAT
                          Threaded stainless steel strainer ISO 228-1 | Pump FiltrationFiltration Strainer Only for Pump and Tank | ISO 228-1 Standard
                              The threaded stainless steel strainer alone is the essential accessory to protect your suction systems. Equipped with a stainless steel filter mesh and a high-quality ABS polymer connection, it fits on all non-return valves that comply with the ISO 228-1 standard. Capable of operating between...
                              €5.22i.e. €4.35 excl. VAT
                              Mixed items
                              Threaded stainless steel strainer ISO 228-1 | Pump FiltrationFiltration Strainer Only for Pump and Tank | ISO 228-1 Standard
                                  The threaded stainless steel strainer alone is the essential accessory to protect your suction systems. Equipped with a stainless steel filter mesh and a high-quality ABS polymer connection, it fits on all non-return valves that comply with the ISO 228-1 standard. Capable of operating between...
                                  Mixed items
                                  €5.22i.e. €4.35 excl. VAT
                                  Female/Female Sleeve Stainless Steel 316 ISO 4144 | PN 20 BarFemale/female sleeve in stainless steel 316
                                      €2.40i.e. €2.00 excl. VAT
                                      Female/Female Sleeve Stainless Steel 316 ISO 4144 | PN 20 BarFemale/female sleeve in stainless steel 316
                                          €2.40i.e. €2.00 excl. VAT
                                          Female/Female Sleeve Stainless Steel 316 ISO 4144 | PN 20 BarFemale/female sleeve in stainless steel 316
                                              The AISI 316 Stainless Steel Female/Female Sleeve is the standard connection solution for demanding industrial piping networks. Compliant with the ISO 4144 standard and withstanding a pressure of 20 bar, it guarantees a perfect seal thanks to its ISO 7-1 (BSPT) thread. Resistant to extreme...
                                              €2.40i.e. €2.00 excl. VAT
                                              Mixed items
                                              Female/Female Sleeve Stainless Steel 316 ISO 4144 | PN 20 BarFemale/female sleeve in stainless steel 316
                                                  The AISI 316 Stainless Steel Female/Female Sleeve is the standard connection solution for demanding industrial piping networks. Compliant with the ISO 4144 standard and withstanding a pressure of 20 bar, it guarantees a perfect seal thanks to its ISO 7-1 (BSPT) thread. Resistant to extreme...
                                                  Mixed items
                                                  €2.40i.e. €2.00 excl. VAT
                                                  Female Cross Stainless Steel 316 ISO 4144 | PN 20 Bar | 4 Channels F/FCross F/F/F/F in stainless steel 316
                                                      €6.30i.e. €5.25 excl. VAT
                                                      Female Cross Stainless Steel 316 ISO 4144 | PN 20 Bar | 4 Channels F/FCross F/F/F/F in stainless steel 316
                                                          €6.30i.e. €5.25 excl. VAT
                                                          Female Cross Stainless Steel 316 ISO 4144 | PN 20 Bar | 4 Channels F/FCross F/F/F/F in stainless steel 316
                                                              316 stainless steel fittings
                                                              The 316 stainless steel female/female cross is the ideal distribution connection to divide your flows in 4 directions with maximum safety. Compliant with the ISO 4144 standard and withstanding a pressure of 20 bar, it guarantees a perfect seal thanks to its ISO 7-1 (BSPT) threads. Resistant to...
                                                              €6.30i.e. €5.25 excl. VAT
                                                              Mixed items
                                                              Female Cross Stainless Steel 316 ISO 4144 | PN 20 Bar | 4 Channels F/FCross F/F/F/F in stainless steel 316
                                                                  316 stainless steel fittings
                                                                  The 316 stainless steel female/female cross is the ideal distribution connection to divide your flows in 4 directions with maximum safety. Compliant with the ISO 4144 standard and withstanding a pressure of 20 bar, it guarantees a perfect seal thanks to its ISO 7-1 (BSPT) threads. Resistant to...
                                                                  Mixed items
                                                                  €6.30i.e. €5.25 excl. VAT
                                                                  Equal Tee Stainless Steel 316 Female/Female/Female PN20 - BSPT ConnectionEqual female/female/female stainless steel 316
                                                                      €4.03i.e. €3.36 excl. VAT
                                                                      Equal Tee Stainless Steel 316 Female/Female/Female PN20 - BSPT ConnectionEqual female/female/female stainless steel 316
                                                                          €4.03i.e. €3.36 excl. VAT
                                                                          Equal Tee Stainless Steel 316 Female/Female/Female PN20 - BSPT ConnectionEqual female/female/female stainless steel 316
                                                                              This Equal Female/Female/Female (F/F/F) tee is an indispensable branch fitting for demanding industrial fluid systems. Made of AISI 316 Stainless Steel , it offers superior resistance to corrosion, chemicals, and extreme temperatures ranging from -20°C to +220°C . Compliant with the ISO 4144 standard , it can withstand a...
                                                                              €4.03i.e. €3.36 excl. VAT
                                                                              Mixed items
                                                                              Equal Tee Stainless Steel 316 Female/Female/Female PN20 - BSPT ConnectionEqual female/female/female stainless steel 316
                                                                                  This Equal Female/Female/Female (F/F/F) tee is an indispensable branch fitting for demanding industrial fluid systems. Made of AISI 316 Stainless Steel , it offers superior resistance to corrosion, chemicals, and extreme temperatures ranging from -20°C to +220°C . Compliant with the ISO 4144 standard , it can withstand a...
                                                                                  Mixed items
                                                                                  €4.03i.e. €3.36 excl. VAT
                                                                                  Union 3 Pieces Stainless Steel 316 Conical Reach M/F | PN 20 Bar | ISO 4144Male/female conical-range union in stainless steel 316
                                                                                      €6.98i.e. €5.82 excl. VAT
                                                                                      Union 3 Pieces Stainless Steel 316 Conical Reach M/F | PN 20 Bar | ISO 4144Male/female conical-range union in stainless steel 316
                                                                                          €6.98i.e. €5.82 excl. VAT
                                                                                          Union 3 Pieces Stainless Steel 316 Conical Reach M/F | PN 20 Bar | ISO 4144Male/female conical-range union in stainless steel 316
                                                                                              The AISI 316 stainless steel conical male/female span union is the ideal technical solution for piping networks that require frequent dismantling. ISO 4144 compliant and withstanding a pressure of 20 bar, this 3-piece fitting offers a high-performance metal-to-metal seal. Resistant to extreme...
                                                                                              €6.98i.e. €5.82 excl. VAT
                                                                                              Mixed items
                                                                                              Union 3 Pieces Stainless Steel 316 Conical Reach M/F | PN 20 Bar | ISO 4144Male/female conical-range union in stainless steel 316
                                                                                                  The AISI 316 stainless steel conical male/female span union is the ideal technical solution for piping networks that require frequent dismantling. ISO 4144 compliant and withstanding a pressure of 20 bar, this 3-piece fitting offers a high-performance metal-to-metal seal. Resistant to extreme...
                                                                                                  Mixed items
                                                                                                  €6.98i.e. €5.82 excl. VAT
                                                                                                  3-Piece Stainless Steel 316 Tapered Seat BW/BW | PN 20 Bar
                                                                                                      €8.70i.e. €7.25 excl. VAT
                                                                                                      3-Piece Stainless Steel 316 Tapered Seat BW/BW | PN 20 Bar
                                                                                                          €8.70i.e. €7.25 excl. VAT
                                                                                                          3-Piece Stainless Steel 316 Tapered Seat BW/BW | PN 20 Bar
                                                                                                              The BW / BW conical span joint made of 316 stainless steel is the ultimate technical solution for fully welded piping networks. Compliant with the ISO 4144 standard and withstanding a pressure of 20 bar, this three-piece fitting allows quick disassembly without cutting thanks to its central nut...
                                                                                                              €8.70i.e. €7.25 excl. VAT
                                                                                                              Mixed items
                                                                                                              3-Piece Stainless Steel 316 Tapered Seat BW/BW | PN 20 Bar
                                                                                                                  The BW / BW conical span joint made of 316 stainless steel is the ultimate technical solution for fully welded piping networks. Compliant with the ISO 4144 standard and withstanding a pressure of 20 bar, this three-piece fitting allows quick disassembly without cutting thanks to its central nut...
                                                                                                                  Mixed items
                                                                                                                  €8.70i.e. €7.25 excl. VAT
                                                                                                                  Union 3 Pieces Stainless Steel 316 Conical Reach F/F | PN 20 Bar | ISO 4144Female/female conical-range union in stainless steel 316
                                                                                                                      €12.00i.e. €10.00 excl. VAT
                                                                                                                      Union 3 Pieces Stainless Steel 316 Conical Reach F/F | PN 20 Bar | ISO 4144Female/female conical-range union in stainless steel 316
                                                                                                                          €12.00i.e. €10.00 excl. VAT
                                                                                                                          Union 3 Pieces Stainless Steel 316 Conical Reach F/F | PN 20 Bar | ISO 4144Female/female conical-range union in stainless steel 316
                                                                                                                              The AISI 316 stainless steel conical span union is the reference solution for piping networks requiring quick dismantling. Compliant with the ISO 4144 standard and withstanding a pressure of 20 bar, this 3-piece fitting guarantees a perfect metal-to-metal seal. Its exceptional resistance to...
                                                                                                                              €12.00i.e. €10.00 excl. VAT
                                                                                                                              Mixed items
                                                                                                                              Union 3 Pieces Stainless Steel 316 Conical Reach F/F | PN 20 Bar | ISO 4144Female/female conical-range union in stainless steel 316
                                                                                                                                  The AISI 316 stainless steel conical span union is the reference solution for piping networks requiring quick dismantling. Compliant with the ISO 4144 standard and withstanding a pressure of 20 bar, this 3-piece fitting guarantees a perfect metal-to-metal seal. Its exceptional resistance to...
                                                                                                                                  Mixed items
                                                                                                                                  €12.00i.e. €10.00 excl. VAT
                                                                                                                                  316 Stainless Steel Ball Valve Male/Female PTFE2-piece spherical bushel valve - stainless body 316 - male female
                                                                                                                                      €35.58i.e. €29.65 excl. VAT
                                                                                                                                      316 Stainless Steel Ball Valve Male/Female PTFE2-piece spherical bushel valve - stainless body 316 - male female
                                                                                                                                          €35.58i.e. €29.65 excl. VAT
                                                                                                                                          316 Stainless Steel Ball Valve Male/Female PTFE2-piece spherical bushel valve - stainless body 316 - male female
                                                                                                                                              The M/F 2-piece ball valve in 316 stainless steel is the ultimate disconnect solution for your corrosive fluid networks. Equipped with an integral bore for unrestricted flow and PTFE seats for a perfect seal, it can withstand temperatures ranging from -20°C to...
                                                                                                                                              €35.58i.e. €29.65 excl. VAT
                                                                                                                                              Mixed items
                                                                                                                                              316 Stainless Steel Ball Valve Male/Female PTFE2-piece spherical bushel valve - stainless body 316 - male female
                                                                                                                                                  The M/F 2-piece ball valve in 316 stainless steel is the ultimate disconnect solution for your corrosive fluid networks. Equipped with an integral bore for unrestricted flow and PTFE seats for a perfect seal, it can withstand temperatures ranging from -20°C to...
                                                                                                                                                  Mixed items
                                                                                                                                                  €35.58i.e. €29.65 excl. VAT
                                                                                                                                                  Union 3 Pieces Stainless Steel 316 Female / BW Welded | PN 20 BarFemale conical/welding union 316
                                                                                                                                                      €8.72i.e. €7.26 excl. VAT
                                                                                                                                                      Union 3 Pieces Stainless Steel 316 Female / BW Welded | PN 20 BarFemale conical/welding union 316
                                                                                                                                                          €8.72i.e. €7.26 excl. VAT
                                                                                                                                                          Union 3 Pieces Stainless Steel 316 Female / BW Welded | PN 20 BarFemale conical/welding union 316
                                                                                                                                                              316 stainless steel fittings
                                                                                                                                                              The 316 Stainless Steel Female / BW Conical Seat Union is the ultimate hybrid fitting for connecting your threaded equipment to your welded networks. Compliant with ISO 4144 and withstanding 20 bar of pressure, it offers a metal-to-metal seal without wear seals. Resistant to extreme conditions...
                                                                                                                                                              €8.72i.e. €7.26 excl. VAT
                                                                                                                                                              Mixed items
                                                                                                                                                              Union 3 Pieces Stainless Steel 316 Female / BW Welded | PN 20 BarFemale conical/welding union 316
                                                                                                                                                                  316 stainless steel fittings
                                                                                                                                                                  The 316 Stainless Steel Female / BW Conical Seat Union is the ultimate hybrid fitting for connecting your threaded equipment to your welded networks. Compliant with ISO 4144 and withstanding 20 bar of pressure, it offers a metal-to-metal seal without wear seals. Resistant to extreme conditions...
                                                                                                                                                                  Mixed items
                                                                                                                                                                  €8.72i.e. €7.26 excl. VAT
                                                                                                                                                                  Union 3 Pieces Stainless Steel 316 Male / BW Welded | PN 20 Bar
                                                                                                                                                                      €11.04i.e. €9.20 excl. VAT
                                                                                                                                                                      Union 3 Pieces Stainless Steel 316 Male / BW Welded | PN 20 Bar
                                                                                                                                                                          €11.04i.e. €9.20 excl. VAT
                                                                                                                                                                          Union 3 Pieces Stainless Steel 316 Male / BW Welded | PN 20 Bar
                                                                                                                                                                              316 stainless steel fittings
                                                                                                                                                                              The 316 stainless steel male / BW conical span union is the ultimate hybrid fitting for connecting your threaded equipment to your permanent welded networks. ISO 4144 compliant and withstanding a pressure of 20 bar, it offers a high-performance metal-to-metal seal without wear seals. Resistant...
                                                                                                                                                                              €11.04i.e. €9.20 excl. VAT
                                                                                                                                                                              Mixed items
                                                                                                                                                                              Union 3 Pieces Stainless Steel 316 Male / BW Welded | PN 20 Bar
                                                                                                                                                                                  316 stainless steel fittings
                                                                                                                                                                                  The 316 stainless steel male / BW conical span union is the ultimate hybrid fitting for connecting your threaded equipment to your permanent welded networks. ISO 4144 compliant and withstanding a pressure of 20 bar, it offers a high-performance metal-to-metal seal without wear seals. Resistant...
                                                                                                                                                                                  Mixed items
                                                                                                                                                                                  €11.04i.e. €9.20 excl. VAT