Rotho Blaas HBSEVO8200 8mm x 200mm Carbon Steel + C4 EVO Coating Torx T40 Drive Flat Head Asymmetric "Umbrella" Thread Sharp 1 Cut Tip Countersunk Screw with Under-Head Ribs w/Bit (100/Pack)
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 (a = 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.
Features
- HBS EVO is one of the strongest wood screws in an outdoor environment. The special surface treatment allows it to be used in service class 3 and in class C4 atmospheric corrosion conditions, also on chemically treated wood or wood containing tannin.
- Structural wood screws for outdoors and aggressive environments: choose the best, choose HBS EVO.
- The special 20 µm multilayer C4 EVO coating with surface treatment of epoxy resin and aluminium flakes makes HBS EVO the perfect screw for application outdoors and in aggressive environments.
- Ideal for applications with woods containing tannin or treated with impregnating agents or other chemical processes, it is approved for structural applications subject to stresses in any direction vs. the grain (a = 0° - 90°).
- Asymmetric “umbrella” threading for excellent wood pull-through. HBS EVO is characterized by superior strength: the tests performed have shown that the steel has excellent failure and yield strength (fy,k = 1000 N/mm2) and very high torsional strength (ftor,k) for safer screwing.
- Certified for use in service class 3 outdoor applications and under class C4 atmospheric corrosion conditions.
- Excellent for fastening framed panels and lattice beams (rafters, trusses), it offers superb performance in fastening on solid timber and glulam, CLT, LVL, high-density woods and aggressive woods containing tannin (such as oak and chestnut) or chemically treated wood.
- HBS EVO values are tested, certified and calculated for high-density woods.
Specifications
- Diameter: 8mm (0.32”)
- Length: 200mm (8”)
- Head: Countersunk with Ribs
- Thread: Asymmetric "Umbrella"
- Tip: Sharp 1 Cut
- Materials and Coatings: Carbon Steel + C4 EVO Coating
- Drive: Torx T40
- Pieces: 100
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.
Applications
- Timber based panels
- Solid timber
- Glulam (Glued Laminated Timber)
- CLT, LVL
- High density woods
- Aggressive woods (containing tannin)
- Chemically treated woods Service classes 1, 2 and 3.