DIN 7642 is for Compression couplings - Ring type nipples for brazed connection. Metric banjo fittings is often used in hydraulic hose system, match with DIN Braided Hose Inserts, also called banjo bolt, as per DIN 7643 standard.
DIN 7642 Form B type drawing chart:
DIN 7642 form b specification tabel
Banjo fittings has many industrial applications catalogue such as:
Banjo fitting fuel
Banjo fitting hydraulic
Banjo adaptors elbow
Banjo fitting size chart as follows:
8mm banjo fittings
double banjo blots
banjo eye fittings
DIN_7642_form_E_type_drawing
DIN_7642_form_E_type_standard specifications