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Dowel system for fastening facing formwork made of brickwork at distance to concrete wall, has expanding screw including maximum dimension, which is smaller or equal to specific times of maximum dimension of feeding section
Dowel system for fastening facing formwork made of brickwork at distance to concrete wall, has expanding screw including maximum dimension, which is smaller or equal to specific times of maximum dimension of feeding section
The system (1) has a feeding section (13) extended against a threaded section at dimension and retracted by screwing the threaded section in an expansion bolt (3) into another expansion bolt (4). An expanding screw (5) comprises a screw head (19) in insertion direction (E) behind the feeding section. The expanding screw has maximum dimension (D4), which is smaller or equal to 1.1-times of maximum dimension of the feeding section. Another threaded section (15) is arranged along the insertion direction behind the feeding section. The feeding section comprises a cone-shaped extension section.
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