General Fabrications

ALtracs® Plus

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  • The self-tapping screw for light metal
  • Lightweight construction suitability: The optimised thread geometry of the ALtracs® Plus facilitates the use of smaller and shorter screws, but with consistently high strength values
  • High clamp loads and long term stability, even under high dynamic and thermal stress
  • Up to 40% costs saving through omission of work steps for screw and component
  • Easy design engineering with the EJOT® ALtra CALC® prognosis programme
  • High vibration resistance without additional safety elements
  • High assembly safety due to low installation and failure torque
  • In case of repairs a metric screw can be used 

„Specialist“ for light metal

EJOT ALtracs® Plus screws are thread-forming fasteners developed for maximum strength values in light alloy assemblies and other non-ferrous metals such as zinc, copper or brass. The ALtracs® Plus is designed for direct assembly into cast holes. Compared to metric screws significant cost savings can be realised because the number of work steps is reduced (e.g. thread cutting). ALtracs® Plus is the improved version of the ALtracs® screw and it achieves strength values which are comparable to metric screw joints of the strength category 10.9.

Optimised thread design

The thread geometry plays an important role for direct assembly into light metal, since the different material strength properties of steel and light metal require a special design of the steel screw. The 33° screw flank angle forms a considerably stronger female thread compared to 60° threads. The female thread in the weaker light metal material is strengthened by the larger thread root which causes a balanced strength ratio. The asymmetric thread flank results in optimal material displacement and creates a large thread engagement area.

ALtracs® Plus WN 51 Head Styles and Drives

WN5117 hexagon flange head
WN5151 round washer head with TORX PLUS®/AUTOSERT
WN5152 pan head with TORX PLUS®/AUTOSERT
WN5153 oval countersunk head with TORX PLUS®/AUTOSERT
WN5154 flat countersunk head with TORX PLUS®/AUTOSERT

For detailed information, please refer to the EJOT company standard.
You can download these in our service area "CAD & more".
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EJOT® - The Quality Connection - This statement captures the Group's ethos. On one hand, it reflects the uncompromising efforts made to achieve the highest possible levels of product quality. On the other hand, it underlines that, technical standards aside, the human aspect both inside and outside the company are just as important. Just one reason they call EJOT® the quality connection.