Threaded Rod Connectors and Reducers

Threaded rod connectors and reducers allow you to join lengths of threaded rod end-to-end or connect rods of different diameters, making it easy to create longer assemblies or transition between sizes without specialist tooling.

Connectors (also called coupler nuts or extension nuts) are long hex nuts internally threaded along their full length. Reducers allow you to step from one metric diameter to another. Available in BZP and stainless finishes across a range of metric sizes.

  • Types: Full connectors (coupler nuts) and reducers
  • Sizes: M6 to M24
  • Finishes: BZP and stainless steel
  • Extends or joins threaded rod sections
  • Reducers allow connection between different rod diameters

Not sure which finish to choose?

We stock fasteners in three finishes to suit every application. BZP is ideal for indoor and sheltered use. HDG gives heavy-duty protection for outdoor, structural, and timber work. A4 Grade 316 Stainless is the right choice for marine, coastal, and chemical environments. Read our guide to pick the right finish for your project.

Read the finish guide

Same-day dispatch — free delivery over £60

Orders placed before 2pm are dispatched the same working day via tracked courier. Free standard UK delivery on orders over £60. All fasteners are manufactured to DIN and ISO standards in Grade 4.8 and 8.8 steel — competitively priced for trade and domestic buyers, with no minimum order.

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