Rothoblaas - Wood screws and connectors Page 46
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HBS EVO 1002 CERTIFIED AC233 | AC257 ESR-4645 C4 COATING BIT INCLUDED COATING ETA-11/0030 COUNTERSUNK SCREW C4 EVO COATING 20 μm multilayer coating with a surface treatment of epoxy resin and aluminium flakes. No rust after 1440 hours of salt spray exposure, as per ISO 9227. Can be used in service class 3 outdoor applications and under class C4 atmospheric corrosion conditions. AGGRESSIVE WOODS Ideal for applications with woods containing tannin or treated with impregnating agents or other chemical processes. STRUCTURAL APPLICATIONS Approved for structural applications subject to stresses in any direction vs. the grain (α = 0° - 90°). Asymmetric “umbrella” threading for better timber pull-through. SUPERIOR STRENGTH Steel with superb yield and failure strength (fy,k = 1000 N/mm2). Very high torsional strength ftor,k for safer screwing. CHARACTERISTICS FOCUS corrosiveness class C4 HEAD countersunk with under-head ribs DIAMETER from 5,0 to 8,0 mm LENGTH from 80 to 320 mm MATERIAL Carbon steel, with a 20 μm coating, highly resistant to corrosion. FIELDS OF USE • timber based panels • solid timber and glulam • CLT, LVL • high density woods • aggressive woods (containing tannin) • chemically treated woods Service classes 1, 2 and 3. 46 | HBS EVO | CARPENTRY
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