Wire & More supplies mechanical screw couplings for connecting reinforcement bars, available in diameters from 8 to 32 mm. Our couplings offer a reliable alternative to lap splices and are ideal for situations where space constraints or structural requirements do not permit traditional overlaps. We supply both standard couplings and transition couplings for connecting different diameters.
Product Overview
Screw couplings are mechanical connection elements that join two reinforcement bars end-to-end without overlap. The bars are threaded (by rolling or cutting) and then screwed into the coupler, creating a full-strength tensile connection that is at least equivalent to the bar strength. This system saves material, reduces congestion in heavily reinforced zones, and simplifies construction. Wire & More offers various coupling types, including standard couplings (same diameter), transition couplings (different diameters), and position couplings for situations where bar rotation is not possible.
Technical Specifications
| Property | Specification |
|---|---|
| Available diameters | Ø 8, 10, 12, 14, 16, 20, 25, 28, 32 mm |
| Types | Standard, transition, position coupling |
| Coupler material | High-grade steel |
| Compatibility | Suitable for stainless and carbon steel reinforcement |
| Connection tensile strength | ≥ bar strength (full-strength connection) |
| Threading | Rolled or cut |
| Design standard | Eurocode 2 (EN 1992-1-1) |
| Approvals | Per international coupling standards |
Applications
- Heavily reinforced concrete structures with limited space
- Phased construction projects (connecting new to existing)
- Precast concrete elements (site connections)
- Tall columns and wall structures
- Bridges and viaducts
- Tunnels and underground construction
- Structures requiring minimal concrete cover
- Renovation and extension projects
Advantages
- Material savings – no lap length required
- Less congestion – ideal for heavily reinforced zones
- Full-strength connection – tensile strength equal to or greater than bar strength
- Various types – standard, transition, and position couplings available
- Compatible with stainless and carbon steel – versatile application
- Simple installation – quick to install on the construction site
Quality & Certification
Wire & More’s screw couplings meet the requirements of Eurocode 2 and are supplied with the necessary approval documents. We are VCA VOL-certified and ensure that all couplings are accompanied by traceability documentation. Our technical team can advise you on the right coupling type and the corresponding thread preparation.
Need screw couplings for your project? Contact Wire & More for advice and a tailored quotation. We are happy to help you choose the optimal connection solution.