Din 267 Part 9 Pdf -
The official publisher of German national standards. They offer historical and withdrawn standards for archival and legal reference.
What is the of the fasteners you are working with?
Because DIN standards are copyrighted intellectual property, official, legal copies of the PDF cannot be downloaded for free from public forums. To obtain an authorized copy of either the historical DIN 267-9 or its modern successor ISO 4042, you should consult official standards organizations:
The standard, formally titled Mechanical Fasteners; Technical Conditions of Delivery, Components with Electroplated Coatings , is a historical German technical specification that governed the requirements for electroplated surface finishes on fasteners like bolts, screws, and nuts.
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Several websites offer free or low-cost access to the DIN 267 Part 9 PDF, though users should exercise caution regarding document authenticity and completeness:
What is the of your fastener (e.g., 8.8, 10.9)? What is the thread size and pitch you are working with?
To verify compliance with the technical delivery conditions, the standard outlines specific testing protocols:
The standard specifies that the normal coating thickness for a class 6g tolerance grade must not exceed the reference line to ensure fitment. The official publisher of German national standards
One of the most critical warnings highlighted in DIN 267 Part 9 concerns hydrogen embrittlement. During the acid pickling and electroplating processes, atomic hydrogen can penetrate high-tensile steel. Under tensile stress, this can lead to sudden, catastrophic brittle failure. : Fasteners with a hardness of ≥320is greater than or equal to 320
| Part | Title | Current Status | |------|-------|-----------------| | Part 1 | General requirements for screws and nuts | Superseded by DIN ISO 8992 | | Part 2 | Surface roughness for product classes A and B | Superseded | | Part 3 | Mechanical property classes conversion | Superseded by DIN ISO 898-1 | | Part 4 | Mechanical properties for nuts | Superseded by ISO 898-2 | | Part 5 | Acceptance inspection | Superseded by DIN EN ISO 3269 | | Part 6 | Finishes and tolerances for product grade F | Withdrawn | | | Electroplated coatings | Superseded by ISO 4042 | | Part 11 | Stainless steel fasteners | Superseded by DIN EN ISO 3506 | | Part 13 | High/low temperature properties | Superseded | | Part 19 | Surface discontinuities (screws) | Superseded by ISO 6157-1 | | Part 20 | Surface discontinuities (nuts) | Superseded by DIN EN ISO 6157-2 | | Part 21 | Surface discontinuities (nuts, additional) | Superseded by DIN EN ISO 10484 | | Part 27 | Adhesive-coated fasteners | Withdrawn (2023) | | Part 28 | Locking coating fasteners | Current | | Part 30 | Thread rolling screws, class 10.9 | Current |
Provides details on the superseded status of the document. Frequently Asked Questions (FAQ)
The replacement pathway is summarized below: What is the thread size and pitch you are working with
DIN 267-9:1979-08 * Table of Contents. Kein Inhaltsverzeichnis in der Norm vorhanden. * General Product Information. DocumentType. Standards.ie DIN 267-9 - 1979-08
In practical terms, DIN 267 Part 9 defined the relationship between screws and nuts. It dictated how a nut (strength class) must match a bolt (property class) to ensure that the thread would strip before the bolt broke—a safety feature known as "over-torque protection."
Because this is a copyrighted, protected industrial document, you cannot legally find full, official copies for free.
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DIN 267 Part 9 is a standard issued by the Deutsches Institut für Normung (German Institute for Standardization). It specifically defines the allowable limits for surface discontinuities on bolts, screws, and studs. The standard covers fasteners intended for general requirements with nominal thread diameters ranging from 1 mm to 39 mm.
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