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similar to ISO 7042 | DIN standard has been withdrawn
DIN 980 | steel | 8 | zinc-plated, thick-film passivated (VZD) | Cr (VI) - free | metric thread
Note: Similar to ISO 7042 | DIN standard has been withdrawn | modified nut height and wrench width
The hexagon nuts are self-locking nuts with special metal insert. A metal clamping part is fixed in the inner groove. The metal insert has a reliable clamping effect on the full circumference of the thread when attached. It is firmly integrated and cannot be accidentally forgotten. The hexagonal nut can be used multiple times.
Advantages:
• Reusable
• Reliable securing by clamping action of the metal insert
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Note: Similar to ISO 7042 | DIN standard has been withdrawn | modified nut height and wrench width
The hexagon nuts are self-locking nuts with special metal insert. A metal clamping part is fixed in the inner groove. The metal insert has a reliable clamping effect on the full circumference of the thread when attached. It is firmly integrated and cannot be accidentally forgotten. The hexagonal nut can be used multiple times.
Advantages:
• Reusable
• Reliable securing by clamping action of the metal insert
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)
Application:
Joining by bolt, joining by stud
Product type:
with locking element
Product group:
Nuts
RoHS conformal:
Material:
Steel
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Fastening and assembly technology: Products and services
VZD – the Cr(VI)-free alternative: Sustainable surface protection from Böllhoff
Böllhoff bulletin: Changeover to Cr6+-free protective zinc layers for fasteners
The Manual of fastening Technology: 8th edition
