similar to ISO 4032 | DIN standard has been withdrawn
DIN 934 | steel | 8 | zinc-plated, thick-film passivated (VZD) | Cr(VI)-free | metric thread
Note: For nuts of this standard ≤ M5 only the test forces of property class 6 can be guaranteed.
Similar to ISO 4032 | DIN-standard has been withdrawn | changed spanner widths for M10, M12, M14 and M22 | the fine thread has been transferred to ISO 8673
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.
Note: For nuts of this standard ≤ M5 only the test forces of property class 6 can be guaranteed.
Similar to ISO 4032 | DIN-standard has been withdrawn | changed spanner widths for M10, M12, M14 and M22 | the fine thread has been transferred to ISO 8673
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.
Material version:
8
Cr(VI) Note:
Cr(VI)-free
Flange/washer:
without flange
Risk hydrogen embrittlement:
Thread type:
Metric thread
Force application:
Hexagon head
Material:
Steel 8
Installation method:
Screw into place with tool
Surface:
zinc-plated, thick-film passivated (VZD)
Product type:
without locking element
Product group:
Nuts
RoHS conformal:
Material:
Steel
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
