DIN 7641 is Compression couplings with 60° cone Metric thread, banjo fittings.
It is Low pressure fittings

Dimensions of Banjos with male thread and 60° cone to DIN 7641
Pipe-Outside-Ø To fit banjo bolt DIN 7643 thread K1 b L12 S
5 M 8x1 M 10x1 14 8 22 11
6 M 10x1 (G 1/8") M 12x1,5 17 10 27 13
8 M 12x1,5 M 14x1,5 20 12 27 14
10 M 14x1,5 (G 1/4") M 16x1,5 24 14 31 17
10/8 M 14x1,5 (G 1/4") M 14x1,5 24 14 30 17
12 M 16x1,5 M 18x1,5 28 16 33 19
12/10 M 16x1,5 M 16x1,5 28 16 32,5 19
15 M 18x1,5 M 22x1,5 32 20 35 22
18 M 22x1,5 M 26x1,5 39 25 41 27
M 14x1,5 (G 1/4") Innengew. M 14x1,5 24 14 38 -
Standard references
DIN 7601 : 1998 COMPRESSION COUPLINGS WITH BALL-TYPE NIPPLES - COMPLETE UNIONS AND SURVEY
DIN 3850 : 1998 COMPRESSION FITTINGS - SUMMARY
DIN HDBK 348 : 3ED 2015






