KonstruX ST & AG fully threaded construction screw

  • The powerful solution for construction and renovation. One system for all timber-frame construction joints

    • High extraction resistance
    • Strong joints
    • Reduced screwing torque
    • Greater extraction resistance
    • Applications in timber engineering and carpentry, timber-frame construction, hall construction, construction of timber elements, renovation of ceilings, etc.
    • Maximum load transmission, KonstruX fully threaded screws maximise a joint‘s load-bearing capacity with a high thread-extraction resistance in both components. If partially threaded screws are used, the joint‘s load-bearing capacity is limited by the considerably lower head pull-through resistance in the attached part.
    • A time and cost-saving alternative to traditional connections or timber joints such as joist hangers, joist supports, etc.
    • Timber has a low transverse compressive and shear strength. KonstruX fully threaded screws are inserted into the timber for reinforcement. The KonstruX “takes on” a large proportion of the forces.
    • Doubling up of joists, for example, increases the load-bearing capacity of floor joists and reduces bending. Here, KonstruX fully threaded screws join the components together in a displacement-resistant manner.
    • Hidden connections, high fire-resistance, no thermal bridges
    • No pilot-drilling required in accordance with approval/ETA From screw lengths ≥ 245 mm, however, pilot-drilling to 1/3 of the screw length is advisable to guide the screw in the right direction (no screw wandering).
    • The required edge and centre distances can be minimised for screws that are only exposed to tension.

    Size Range Available

    KonstruX ST Blue Galvanised

    • 6.5mm Length 80mm to 260mm
    • 8mm Length 95mm to 580mm
    • 10mm Length 125mm to 800mm
    • 11.3mm Length 300mm to 1000mm
    • 13mm Length TBC to 1400mm

    KonstruX AG A4 Stainless

    • 8mm Length 125mm to 195mm
    • 10mm Length 160mm to 500mm
  • KonstruX ST & AG fully threaded construction screw
  • KonstruX ST & AG fully threaded construction screw


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