This is the most critical section for anyone using the keyword . Many websites offer “free PDF downloads” of withdrawn DIN standards, but these are often low-resolution scans, incomplete versions, or completely fraudulent files containing malware.
For 99% of practical applications, ISO 4039-1 is a drop-in replacement. However, if a contract or drawing explicitly says “DIN 764,” you should obtain the original PDF to avoid liability. din 764 pdf
If you are maintaining equipment that uses DIN 764 couplings: This is the most critical section for anyone