Stainless Coupling Nuts
Stainless coupling nuts in 18-8 stainless join two pieces of threaded rod where corrosion resistance matters — outdoor, wet, food, and washdown environments. Pair them with stainless rod to keep the whole run corrosion-resistant and avoid mixed-metal galvanic issues.
For marine or chloride service, ask about 316 stainless. Match the nut to your rod grade and thread.
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- 188CPL#10-24
- #10 - 24 NC COUPLING NUTS 18-8 STAINLESS STEEL
- F
- 0
- Weight: 0.0114000
| Diameter: | #10#10 |
| Thread pitch: | 2424 |
| Material: | 18-8 Stainless18-8 Stainless |
| Finish: | PlainPlain |
| Part Number: | UNC (Coarse)UNC (Coarse) |
| Thread: | Coupling NutsCoupling Nuts |
- 188CPL#10-32
- #10-32 NC COUPLING NUTS 18-8 STAINLESS STEEL
- F
- 0
- Weight: 0.0114000
| Diameter: | #10#10 |
| Thread pitch: | 3232 |
| Material: | 18-8 Stainless18-8 Stainless |
| Finish: | PlainPlain |
| Part Number: | UNC (Coarse)UNC (Coarse) |
| Thread: | Coupling NutsCoupling Nuts |
- 188CPL#6-32
- #6-32 NC COUPLING NUTS 18-8 STAINLESS STEEL
- F
- 0
- Weight: 0.0099000
| Diameter: | #6#6 |
| Thread pitch: | 3232 |
| Material: | 18-8 Stainless18-8 Stainless |
| Finish: | PlainPlain |
| Part Number: | UNC (Coarse)UNC (Coarse) |
| Thread: | Coupling NutsCoupling Nuts |
- 188CPL#8-32
- #8-32 NC COUPLING NUTS 18-8 STAINLESS STEEL
- F
- 0
- Weight: 0.0110000
| Diameter: | #8#8 |
| Thread pitch: | 3232 |
| Material: | 18-8 Stainless18-8 Stainless |
| Finish: | PlainPlain |
| Part Number: | UNC (Coarse)UNC (Coarse) |
| Thread: | Coupling NutsCoupling Nuts |
- 188CPL1/2-13X11/4X5/8
- 1/2" - 13 X 1 1/4" X 5/8" NC COUPLING NUTS 18-8 STAINLESS STEEL
- F
- 0
- Weight: 0.0661000
| Diameter: | 1/21/2 |
| Thread pitch: | 1313 |
| Material: | 18-8 Stainless18-8 Stainless |
| Finish: | PlainPlain |
| Part Number: | UNC (Coarse)UNC (Coarse) |
| Thread: | Coupling NutsCoupling Nuts |
- 188CPL1/2-20
- 1/2" - 20 X 1 1/4" X 5/8" NF COUPLING NUTS 18-8 STAINLESS STEEL
- F
- 0
- Weight: 0.0800000
| Diameter: | 1/21/2 |
| Thread pitch: | 2020 |
| Material: | 18-8 Stainless18-8 Stainless |
| Finish: | PlainPlain |
| Part Number: | UNF (Fine)UNF (Fine) |
| Thread: | Coupling NutsCoupling Nuts |
- 188CPL1/4-28
- 1/4" - 28 X 7/8" X 3/8" NF COUPLING NUTS 18-8 STAINLESS STEEL
- F
- 0
- Weight: 0.0200000
| Diameter: | 1/41/4 |
| Thread pitch: | 2828 |
| Material: | 18-8 Stainless18-8 Stainless |
| Finish: | PlainPlain |
| Part Number: | UNF (Fine)UNF (Fine) |
| Thread: | Coupling NutsCoupling Nuts |
- 188CPL3/4-10
- 3/4-10" NC COUPLING NUTS 18-8 STAINLESS STEEL
- F
- 0
- Weight: 0.2910000
| Diameter: | 3/43/4 |
| Thread pitch: | 1010 |
| Material: | 18-8 Stainless18-8 Stainless |
| Finish: | PlainPlain |
| Part Number: | UNC (Coarse)UNC (Coarse) |
| Thread: | Coupling NutsCoupling Nuts |
- 188CPL3/8-16X11/8X1/2
- 3/8" - 16 X 1 1/8" X 1/2" NC COUPLING NUTS 18-8 STAINLESS STEEL
- F
- 0
- Weight: 0.0443000
| Diameter: | 3/83/8 |
| Thread pitch: | 1616 |
| Material: | 18-8 Stainless18-8 Stainless |
| Finish: | PlainPlain |
| Part Number: | UNC (Coarse)UNC (Coarse) |
| Thread: | Coupling NutsCoupling Nuts |
- 188CPL5/16-18X1X7/16
- 5/16" - 18 X 1" X 7/16" NC COUPLING NUTS 18-8 STAINLESS STEEL
- F
- 0
- Weight: 0.0230000
| Diameter: | 5/165/16 |
| Thread pitch: | 1818 |
| Material: | 18-8 Stainless18-8 Stainless |
| Finish: | PlainPlain |
| Part Number: | UNC (Coarse)UNC (Coarse) |
| Thread: | Coupling NutsCoupling Nuts |
- 188CPL5/16-24
- 5/16" - 24 X 1" X 7/16" NF COUPLING NUTS 18-8 STAINLESS STEEL
- F
- 0
- Weight: 0.0250000
| Diameter: | 5/165/16 |
| Thread pitch: | 2424 |
| Material: | 18-8 Stainless18-8 Stainless |
| Finish: | PlainPlain |
| Part Number: | UNF (Fine)UNF (Fine) |
| Thread: | Coupling NutsCoupling Nuts |
- 188CPL5/8-11X13/4X7/8
- 5/8" - 11 X 1 3/4" X 7/8" NC COUPLING NUTS 18-8 STAINLESS STEEL
- F
- 0
- Weight: 0.2105000
| Diameter: | 5/85/8 |
| Thread pitch: | 1111 |
| Material: | 18-8 Stainless18-8 Stainless |
| Finish: | PlainPlain |
| Part Number: | UNC (Coarse)UNC (Coarse) |
| Thread: | Coupling NutsCoupling Nuts |
- ALUCPL1/4-20X7/8
- 1/4" - 20 X 7/8" X 3/8" AF NC COUPLING NUTS 6061-T6 ALUMINUM
- F
- 0
- Weight: 0.1000000
| Diameter: | 1/41/4 |
| Thread pitch: | 2020 |
| Material: | AluminumAluminum |
| Finish: | PlainPlain |
| Part Number: | UNC (Coarse)UNC (Coarse) |
| Thread: | Coupling NutsCoupling Nuts |
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Stainless Coupling Nuts
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FAQ
Why use stainless coupling nuts?
To join threaded rod in outdoor, wet, food, or washdown environments where plated steel would corrode. 18-8 stainless resists rust and pairs with stainless rod for a fully corrosion-resistant run.
Do you carry 316 stainless coupling nuts?
18-8 is stocked for general corrosion resistance; for marine and chloride service ask us about 316 stainless coupling nuts.
Part of our full Coupling Nuts selection. Browse all nut types or contact our sales team for sizing, cross-references, or bulk pricing. Eugene Fastener & Supply — serving the Pacific Northwest since 1969.
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