<Level1>TX drive</Level1>
<ul><Level2>Six force application areas (line contact) for strong power transmission</Level2>
<Level2>No driving-out effect (cylindrical shape eliminates cam-out effect) for a long bit service life</Level2>
<Level2>Can be mechanically driven</Level2>
<Level2>Good torque transmission</Level2></ul>
<Level1>Countersunk head with milling ribs</Level1>
<ul><Level2>Flush-mount countersinking of the screw head creates a perfect finish</Level2>
<Level2>Less power and force required due to easy and clean countersinking of the screw head</Level2>
<Level2>Usable length corresponds to the entire screw length</Level2></ul>
<Level1>Under-head reinforcement</Level1>
<ul><Level2>Optimal tear-off resistance enhances user safety</Level2></ul>
<Level1>Double thread</Level1>
<ul><Level2>Compressive forces are not transmitted into the low-strength insulation material</Level2>
<Level2>Can be used in any insulation material</Level2>
<Level2>High extraction resistance</Level2></ul>
<Level1>End mill (friction part)</Level1>
<ul><Level2>Less friction on the screw shaft minimises tool damage</Level2>
<Level2>Less power and force required as it functions like a drill bit</Level2>
<Level2>Lower screw-in resistance</Level2>
<Level2>Easy to install long screws</Level2></ul>
<Level1>Coarse thread</Level1>
<ul><Level2>Always provides the optimum speed for each screw length</Level2>
<Level2>The thread geometry enables faster screwing in, saving time during processing</Level2></ul>
<Level1>Cutting point</Level1>
<ul><Level2>Low splitting forces due to drilling effect</Level2></ul>
<Level2>Reduced splitting tendency of the wood enables edge connection </Level2>
<Level2>Chipping of the wood fibres </Level2></ul>
<Level1>High-quality hardened steel</Level1>
<ul><Level2>High breaking torque</Level2>
<Level2>Optimal installation quality</Level2></ul>
<Level1>Anti-friction coating</Level1>
<ul><Level2>Easy to screw in with low screwing resistance, reducing the amount of energy and force required</Level2></ul>

The wood construction screw with double thread is used primarily for fixing on-rafter insulation with pressure-resistant and non-pressure-resistant insulation materials.
Due to the high pull-out resistance, it can also be used for many other applications in timber construction.
In damp rooms and outdoors, non-corrosive materials must be used for mounting (DIN 18360, Section 3.1.4.1).
The user is responsible for design considerations.

Installation must be carried out in accordance with the approval certificate!

Wood construction screw with double thread

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