fs-550 rock® screw
550 mm foundation screw with M16 thread in the centre of the head for attaching connectors, designed exclusively for use in bedrock with a load-bearing capacity at the surface.
Not to be used in earthy (or even hard) soil or in stony soil (just too hard)!
|Number of spirals|
DIN EN ISO 1461 (100µ) hot-dip galvanized steel
|Load bearing capacity|
900 kg/screw in compact and stable stony soil
Stony soil > 50% ONLY
Reinforced screw thread reduced to 11 mm
DO NOT USE IN NON-STONY SOILS as the load will not be guaranteed
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