Tapered Thread Couplers
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International Version Tapered Thread Couplers for the Construction Industry

Reinforcing Bar Couplers Simplify the design and construction of concrete Lapped joints are not always an appropriate means of connecting reinforcing bars. The use of laps can be time consuming in terms of design and installation and can lead to greater congestion within the concrete because of the increased amount of rebar used. Ancon couplers can simplify the design and construction of reinforced concrete and reduce the amount of reinforcement required. the joint. The strength of a mechanical splice is independent of the concrete in which it is located and will retain its strength despite...

Reinforcing Bar Couplers Tapered Thread The Ancon range of Tapered Thread couplers is designed to suit the majority of applications which call for the joining of reinforcing bars. Available to suit bar sizes 12mm to 50mm, the couplers are installed quickly and easily on site without the need for specially trained personnel or specialised, expensive machinery. The compact design of each coupler ensures suitability for use in confined situations where space is restricted or where the loss of cover must be minimised. The couplers are normally supplied fitted to the end of threaded bar,...

Installation Tapered Thread Standard Series 1 The coupler is normally supplied fixed to the reinforcing bar, ready to be installed and cast in concrete. Continue to screw the bar into the coupler until tight. After casting the concrete and when ready to extend, remove the plastic end cap from the coupler. Position the continuation bar in the sleeve and rotate the bar into the coupler. To ensure correct installation, tighten the joint to the specified torque using a calibrated torque wrench on the continuation bar. Tightening torques are shown in the table opposite.

Positional Coupler The Ancon Tapered Thread Positional coupler is designed to be used in applications in which neither bar can be rotated. Having a degree of adjustability, the Positional coupler can also be used as a closer between two fixed bars. The Positional coupler comprises three components, a male section, a female section and a locking nut. The male component has an internal tapered thread and an extended external parallel thread. The female component has a parallel thread and a tapered thread, both of which are internal. A locknut is used to secure the connection when the correct...

Using a torque wrench tighten the male component on the continuation bar to the specified torque, whilst holding the continuation bar with a second wrench. 5 Run the locknut along the threaded barrel of the male component to abut the female section. Using the torque wrench, tighten the locknut to the specified torque. Tightening torques are shown in the table opposite. At this point the groove in the parallel threaded section of the male component must be completely covered by the locknut. If any part of the groove is visible beyond the locknut, the degree of adjustability has been exceeded...

Transition Coupler The Ancon Tapered Thread Transition coupler is used to join reinforcing bars of different diameters where one coupler can be rotated. With all the benefits of the Standard range, Transition couplers are designed to achieve failure loads greater than the national code requirement of the smaller diameter grade 500 reinforcing bar. The Transition coupler comprises an internally threaded sleeve with two right hand threads both of which are tapered towards the middle of the coupler. The diameter of each thread corresponds to the appropriate bar size. A nominal +25mm should be...

Shorter than the standard coupler, it has a tapered thread at one end. The other end is welded directly to the steel. The couplers are manufactured from either steel grade 1045 to ASTM A576 or steel grade C45R to EN10083. The Tapered Thread Weldable coupler is suitable for welding to structural steels, Grade S275 or Grade S355. The load conditions at the connection must be determined by the designer along with the type and size of weld required. Another important consideration is the type of electrode to be used, which must be matched to the properties of the plate and tube, and to the site...

Reinforcing Bar Couplers Tapered Thread Headed Anchors The Tapered Thread Headed Anchor provides an alternative method of achieving rebar end anchorage within concrete. Anchorage of rebars within a concrete section is traditionally achieved by means of creating a long hooked end on the rebar. This can lead to problems when positioning the bar and can increase congestion. It can ultimately result in larger than necessary concrete sections at the location of the hooked ends. Consisting of an oversized coupler, the Tapered Thread Headed Anchor carries the full tension load of the bar when it...

Accessories Threading Machine The Ancon threading machine provides a fast, simple and reliable threading operation. The machine is compact, making it completely portable and easy to locate. It is of a robust design to provide a long, low maintenance life. Threading machines are generally located in stockists’ yards. For larger projects Ancon machines can be made available for hire. Please contact Ancon for further information. Training on the correct usage of the threading machine is provided by Ancon technicians. Machine Consumables The following consumables are available: Chaser Sets...

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