Only for professionals

DIN 985  similar to ISO 10511

Hexagon nuts
Material: Steel 08 | Surface: zinc-plated, thick-film passivated (VZD)

For further information please contact us.


Read on Hide
similar to ISO 10511 | DIN standard has been withdrawn
DIN 985 | steel | 8 | zinc-plated, thick-film passivated (VZD) | Cr (VI) - free | metric thread

Note: Similar to ISO 10511 | DIN standard has been withdrawn | changed nut height and widths

The hexagon nuts with clamping part are self-locking nuts with plastic insert. You do not need to store and assemble additional elements such as washers or spring washers. On one of the two end faces, a polyamide ring-shaped clamping part is firmly attached and cannot be accidentally forgotten. The plastic insert has a reliable clamping effect when fastening the nut. The multiple use of the hexagonal nut is not intended.

• Reliable securing by clamping action of the polyamide insert
• Firmly integrated clamping part
• inadvertent forgetting impossible
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 high-strength screws (≥ 8.8)

>*The verification of the mentioned minimum requirements is carried out according to the test conditions of ISO/CD 4042:2016, galvanic coatings for fasteners. For dimensions < M5, the above values may deviate downwards.

technical details

Read on Hide
Application Joining by bolt, joining by stud
Cr(VI) Note Cr(VI)-free
Flange/washer without flange
Force application Hexagon head
Installation method Screw into place with tool
Material Steel
Material version 08
Risk hydrogen embrittlement
RoHS conformal
Surface zinc-plated, thick-film passivated (VZD)
Thread type Metric thread


You can download CAD-files from our catalog on partcommunity: To Böllhoff partcommunity
Title Language Version File Download
VZD – the Cr(VI)-free alternative: Sustainable surface protection from Böllhoff English 8045/17.02 212.24 KB / PDF
Data sheet: Technical information and dimensions of the product English 02/2022 124.60 KB / PDF
Böllhoff bulletin: Changeover to Cr6+-free protective zinc layers for fasteners English 1622/15.02 894.98 KB / PDF
Fastening and assembly technology: Products and services English 1180/21-V1-EN (WBH) 8.79 MB / PDF

General questions:
Phone: +48 71 387 85 31

You come from another country? Here you can find further contact persons.