It provided the specific numerical values for various tolerance zones (designated by uppercase letters, such as H, G, F) used to determine the upper and lower limits of a hole's size.
If you need help calculating a specific dimension tolerance based on this system, let me know.
The standard is a critical technical specification used in precision engineering and manufacturing to define ISO deviations for holes with nominal sizes ranging from 1 mm to 500 mm . Originally published by the Deutsches Institut für Normung (German Institute for Standardization) in 1965, it remains a foundational document for ensuring dimensional accuracy and compatibility in mechanical systems. din 7161 pdf extra quality
DIN 7161 is a historical standard developed by the German Institute for Standardization ( Deutsches Institut für Normung ). It outlines the fundamental tolerances, deviations, and fits for mating parts—specifically shafts and holes—with nominal dimensions up to 500mm.
The official publisher provides authorized versions. It provided the specific numerical values for various
: Defines both Hole-Basis and Shaft-Basis fit systems.
: Platforms like Scribd host user-uploaded versions for previewing, though official versions from authorized publishers are recommended for critical manufacturing. Relationship to Metric Threads Originally published by the Deutsches Institut für Normung
It is crucial to note that DIN 7161 has been largely withdrawn and replaced by the international standard . However, legacy machinery, classic automotive restorations, and many European engineering firms still reference DIN 7161. If you are working with German blueprints from the 1980s or 1990s, you need the original DIN 7161 text.
The primary modern successor to DIN 7161 is DIN ISO 286-2 .
Acquiring a document ensures that your manufacturing or design process remains accurate and compliant with the technical documentation required for precision engineering.