Benefits
• Eliminates the need for bent anchorage, reducing rebar congestion
• Requires shorter development length compared to conventional anchorage
• Improves concrete flow and compaction in dense reinforcement zones
• Enhances constructability in heavily reinforced structural elements
• Simplifies reinforcement detailing and installation on site
• Reduces handling complexity during transport and assembly
• Improves overall construction efficiency and speed
• Provides reliable anchorage performance through bearing mechanism
• Suitable for complex structural nodes and high-load applications
• Widely applicable in infrastructure, nuclear, and large-scale civil engineering projects
| Partial Anchorage Head | Full Anchorage Head |
| Rebar diameter (mm) | 16 | 20 | 25 | 32 | 40 | 16 | 20 | 25 | 32 | 40 |
| Thread specification | M20×2.5 | M24×3.0 | M30×3.5 | M36×4.0 | M45×4.5 | M20×2.5 | M24×3.0 | M30×3.5 | M36×4.0 | M45×4.5 |
| D (mm) | 38 | 48 | 60 | 75 | 95 | 55 | 65 | 85 | 105 | 130 |
| Head thickness (mm) | 20 | 25 | 30 | 38 | 45 | 20 | 25 | 30 | 38 | 45 |
| Net bearing area (mm²) | 820 | 1357 | 2121 | 3400 | 5498 | 2062 | 2866 | 4968 | 7641 | 11683 |
| Surface ratio (-) | 4.08 | 4.32 | 4.32 | 4.23 | 4.38 | 10.26 | 9.13 | 10.13 | 9.51 | 9.3 |
Applications
As main reinforcement
• Less congestion.
• Easier installation. Threaded heads can be fitted on site after rebar installation.
• No more risk of rebar embrittlement due to bar bending.
• Require shorter anchorage (development) length.
• More faithful realisation of strut-and-tie modeling.
• Better anchorage effectiveness (lower bearing stress and less slip) especially on large diameter bars.
As transverse reinforcement
• Shear reinforcement in slabs and footings.
• Cross ties in walls, columns and diaphragm walls.
• Faster installation time.
• No more site bending of double-headed 135° or 180° hooks.
• Allow use of larger bars, therefore decreasing the quantity of links.


Beam ends & cantilever elements

Alternative to 180° hooks:Slabs and wall shear links

Punching shear applications

Substitutes long development length
