JORDAHL® Cast in Channels - Anchor JTA & T bolts

JORDAHL® Cast in Channels and T bolt Fixings

JORDAHL®  JTA cast in channels are used in conjunction with simple twist-in T bolts that together provide safe and adjustable concrete connections for the resistance of tension and shear loads. The products are evaluated under UK Technical Assessment UKTA-0836-22/6149 and European Technical Assessment ETA/09-0338.

JORDAHL® JTA cast in channels and T bolts are certified around the world and have a proven history of high reliability and high performance. Invented in 1913 by Anders Jordahl and since produced for over 100 years, the cast in channel JTA fixing range comprises JTA W hot-rolled, and JTA K cold rolled channel profiles, which are manufactured and suppled under an ISO 9001:2015 quality assurance system.  

To assist designers with product selection and load distribution design, JORDAHL® EXPERT design software for cast in channels JTA is available from the downloads section of this product page. This aclaimed design software is free to download and easy to use.

Cold Rolled Cast in Channel Fixings - Anchor Channels

JTA K cold rolled anchor channels give an efficient method of connecting predominantly static loads. Typical applications include brickwork support connections, and connections for mechanical and electrical building services.  Available profile sizes are as follows:

JTA K 28/15 anchor channel
JTA K 38/17 anchor channel
JTA K 40/25 anchor channel
JTA K 50/30 anchor channel
JTA K 53/34 anchor channel
JTA K 72/48 anchor channel

Hot Rolled Cast in Channel Fixings - Anchor Channels

JTA W hot-rolled anchor cast in channel fixings provide simple and reliable concrete connections for critical components. In addition to static loads they are certified for the support of oscillating, seismic or dynamic loads such as those produced by moving machinery, structural vibration, and wind loads. Typical applications include curtain wall connections; structural and architectural steel connections; and connections for lift and material handling guide rails. Available profile sizes are as follows:

JTA W 40/22 anchor cast in channel
JTA W 40+ anchor cast in channel
JTA W 50/30 anchor cast in channel
JTA W 50+ anchor cast in channel
JTA W 53/34 anchor cast in channel
JTA W 55/42 anchor cast in channel
JTA W 72/48 anchor cast in channel

Examples of Bespoke Solutions

Curved cast in channels, anchor channels grouped in pairs, anchor channel corner pieces. Production of special profiles on request.


Available in hot-dip galvanised steel or stainless steel (A4) in lengths up to 6 metres. Channel profiles are filled with polyethylene (PE) or polystyrene (PS) to prevent concrete ingress when cast into concrete.

Load Groups

To provide the widest selection of load performance a range of 13 cast in anchor channel types are available with standard channel lengths ranging from 150mm to 6 metres. Load capacities up to 72 kN design resistance per connection. Standard T bolt diameters range from M6 to M30.

Select Products on NBS Source


cast in channels
cast in channels anchor channels JTA


  • UK Technical Assessment UKTA-0836-22/6149
  • European Technical Assessment ETA-09/0338
  • JORDAHL® EXPERT design software
  • Efficient and versatile support of high loads
  • Simple connection adjustment to accommodate building tolerances
  • No drilling of concrete or site welding
  • Faster connections with simple hand tools
  • Connections close to concrete edges are possible
  • Easy to replace or re-position connected components
  • Resistant to fatigue, seismic activities, and explosions (hot rolled)
  • High tightening torques (hot rolled)
  • Approved fire resistance performance


Contact us

Whatever you're planning.

We are pleased to provide you with advice for every product application. Please contact us when you need assistance or require special custom solutions.

Consultant Search