Simple & speedy installation without lock-nuts, only filling epoxy resin which instantly hardens after injection.

EPOCH-JOINT is the mechanical joint for Neji-Tetsu-Con, TTK’s hot-rolled threaded rebar. TTK Epoxy, the epoxy resin, is used for fixing rebar and a coupler, which instantly hardens once injected. EPOCH-JOINT brings you better workability and cost-savings at site without lock-nuts to be tightened.

EPOCH-JOINT was developed pursuing simple and speedy construction. No large tools, machines nor skilled workers are required unlike for gas-pressure welding joint. The double-cartridge epoxy gun is used for injection tool.

Applicable Rebar Grade/Size

Grade (MPa)

B500, B600

Size (mm)

20, 25, 32, 40

*able to join rebar with different sizes.


  • Suitable for prefabrication construction method for column & beam
  • Able to be installed even in the bad weather
  • No need for skilled workers or large machines for installation

*Easy construction with a double-cartridge epoxy gun



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