Reducing Coupling Nuts
Reducing coupling nuts have two different internal thread sizes — one at each end — so they join two pieces of threaded rod of different diameters or pitches in a single fitting, for example connecting 3/8″ rod to 1/2″ rod.
They save you from adapters when transitioning rod sizes in a hanger run or assembly. Tell us the two thread sizes you need to connect.
- REDCN5/16-18X1/2-20PL
- 5/16" 18 X 1/2" - 20 SPECIAL REDUCER COUPLING NUT PLAIN FINISH
- F
- 0
- Weight: 0.0375000
| Diameter 1: | 1/21/2 |
| Thread pitch 1: | 2020 |
| Diameter 2: | SteelSteel |
| Thread Pitch 2: | PlainPlain |
| Material: | SteelSteel |
| Finish: | Coupling NutsCoupling Nuts |
| Part Number: | ASME B18.2.2ASME B18.2.2 |
| Thread: |
- REDCPL1/2-13ZP
- 1/2" - 13 X 3/8" - 16 X 5/8" HEX A.F., 1-1/4" OAL HEX COUPLING NUT - REDUCER NC ZINC PLATED
- F
- 0
- Weight: 0.0668000
| Diameter 1: | 1/21/2 |
| Thread pitch 1: | 1313 |
| Diameter 2: | SteelSteel |
| Thread Pitch 2: | ZincZinc |
| Material: | UNC (Coarse)UNC (Coarse) |
| Finish: | Coupling NutsCoupling Nuts |
| Part Number: | ASME B18.2.2ASME B18.2.2 |
| Thread: | CoarseCoarse |
- REDCPL3/4-10ZP
- 3/4-10 X 5/8-11 HEX COUPLING NUT - REDUCER NC ZINC PLATED
- F
- 0
- Weight: 0.2170000
| Diameter 1: | 3/43/4 |
| Thread pitch 1: | 1010 |
| Diameter 2: | SteelSteel |
| Thread Pitch 2: | ZincZinc |
| Material: | UNC (Coarse)UNC (Coarse) |
| Finish: | Coupling NutsCoupling Nuts |
| Part Number: | ASME B18.2.2ASME B18.2.2 |
| Thread: |
- REDCPL3/8-16ZP
- 3/8-16 X 1/4-20 HEX COUPLING NUT - REDUCER NC ZINC PLATED
- F
- 0
- Weight: 0.0389000
| Diameter 1: | 3/83/8 |
| Thread pitch 1: | 1616 |
| Diameter 2: | SteelSteel |
| Thread Pitch 2: | ZincZinc |
| Material: | UNC (Coarse)UNC (Coarse) |
| Finish: | Coupling NutsCoupling Nuts |
| Part Number: | ASME B18.2.2ASME B18.2.2 |
| Thread: |
No items match your selected filters. Please change or reset your filters to try again.
Reducing Coupling Nuts
Get Job Pricing / Submittals Email Sales
FAQ
What is a reducing coupling nut?
A reducing coupling nut has two different internal thread sizes, one per end, so it connects two pieces of threaded rod of different diameters or pitches in one fitting.
What thread combinations are available?
Common reductions between adjacent rod sizes (for example 3/8 to 1/2 inch). Tell us the two sizes you need to join and we will match the right reducing coupling nut.
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.
View Cart
View Wishlist