: The standard is primarily concerned with defining and testing the thickness of electroplated layers . This is critical because excessive coating can interfere with thread fit . Thread Tolerances :
The DIN 267 Part 9 PDF document covers the following topics:
: The "zero line" is the theoretical boundary of a thread. If a coating is too thick, the bolt won't fit into the nut. DIN 267-9 mandates that the coating must not push the bolt thread beyond this limit. Harmonization
Disclaimer: This article is for informational purposes only and does not constitute legal or engineering advice. Always refer to the complete, current official standard for product compliance.
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Annex A provides detailed specifications for bolts, screws, and studs made of steel with a tensile strength of up to 1200 MPa.