11.3mm KonstruX Countersunk Screws

11.3mm KonstruX Countersunk Screws fully threaded timber construction screws with a Torx TX50 drive. These screws simultaneously ensure a high extraction resistance and strong joints in timber construction. Also the AG screw tip allows for faster and easier screwing and reduces the effects of splitting. A powerful solution explicitly for construction and renovation.

These construction screws are used during timber frame engineering and a user friendly ECS calculation software package can be downloaded free of charge. The following software allows pre-calculations of main and secondary beam connections, joist doubling and reinforcements of supports. This is also a verifiable calculation aid in accordance with EN 1995 (Eurocode 5) and DIN 1052.

Available 11.3mm KonstruX Screws

11.3mm x 300mm	11.3mm x 340mm	11.3mm x 380mm	11.3mm x 420mm
11.3mm x 460mm	11.3mm x 500mm	11.3mm x 540mm	11.3mm x 580mm
11.3mm x 620mm	11.3mm x 660mm	11.3mm x 700mm	11.3mm x 750mm
11.3mm x 800mm	11.3mm x 900mm	11.3mm x 1000mm

Product Data Sheet

One system for all load-bearing connections in timber construction

For application especially in timber engineering, carpentry, timber frame construction, hall construction, timber element construction, renovation of floor ceilings, etc.
Also ensures the highest power transmission.
The fully-threaded screws maximise the load-bearing capacity of a connection due to the high threaded pull-out resistance in both components. When using partial threaded screws, the significantly lower head pull-through resistance in the attachment part limits the load-bearing capacity of the connection.
They are a time and cost-saving alternative to traditional connections or timber joints such as joist hangers, joist supports, etc.
Additionally, wood has a low transverse pressure and transverse tensile strength. Hence for reinforcement, the screws are placed in the wood, to “take over” a large part of the forces.
Doubling up of joists, for example, increases the load-bearing capacity of floor joists and reduces bending. These fully threaded screws subsequently join the components together in a displacement-resistant manner.
Additionally they have invisible connections, a high fire resistance, and no thermal bridges.
There is no pre-drilling required after approval/ETA. From screw lengths ≥ 245 mm, however, a trend-setting pre-drilling to 1/3 of the screw length can be recommended (no running of the screw).
Further in the case of screws that are used exclusively on tension, the required edge and axle distances may be minimised.