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DIN 910 | steel | zinc-plated, thick-film passivated (VZD) | Cr(VI) - free | cylindrical metric fine thread
Surface (VZD): galvanized, thick-film passivated, min. 5μm | corrosion resistance to DIN EN ISO 9227*: white rust 72h, red rust 144h | defined coefficient of friction μ(total) = 0.12 - 0.18 for elements with a nominal tensile strength ≥ 800 MPa
*The verification of the mentioned minimum requirements is carried out according to the test conditions of DIN EN ISO 4042, galvanic coatings for fasteners. For dimensions < M5, the above values may deviate downwards.
Surface (VZD): galvanized, thick-film passivated, min. 5μm | corrosion resistance to DIN EN ISO 9227*: white rust 72h, red rust 144h | defined coefficient of friction μ(total) = 0.12 - 0.18 for elements with a nominal tensile strength ≥ 800 MPa
*The verification of the mentioned minimum requirements is carried out according to the test conditions of DIN EN ISO 4042, galvanic coatings for fasteners. For dimensions < M5, the above values may deviate downwards.
Installation method:
Screw into place with tool
Flange/washer:
with flange
Product type:
Cap screw with external driving feature
Surface:
zinc-plated, thick-film passivated (VZD)
Risk hydrogen embrittlement:
Head shape:
Hexagonal head with flange
Material:
Steel
Material:
Steel
RoHS conformal:
Cr(VI) Note:
Cr(VI)-free
Thread type:
Cylindrical metric fine thread
Product group:
Screws
Force application:
Hexagon head
All technical data refer to the measure mm
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The Manual of fastening Technology: 8th edition
Fastening and assembly technology: Products and services
Böllhoff bulletin: Changeover to Cr6+-free protective zinc layers for fasteners
VZD – the Cr(VI)-free alternative: Sustainable surface protection from Böllhoff
