For Bulkhead Couplings
| Thread | Approx. Dimensions | Код | ||
| G | H | SW | ||
| M 12 x 1,5 = 06-L | 6 | 17 | GM-12x1,5 | |
| M 14 x 1,5 = 08-L + 06-S | 6 | 19 | GM-14x1,5 | |
| M 16 x 1,5 = 10-L + 08-S | 6 | 22 | GM-16x1,5 | |
| M 18 x 1,5 = 12-L + 10-S | 6 | 24 | GM-18x1,5 | |
| M 20 x 1,5 = 12-S | 6 | 27 | GM-20x1,5 | |
| M 22 x 1,5 = 15-L + 14-S | 7 | 30 | GM-22x1,5 | |
| M 24 x 1,5 = 16-S | 7 | 32 | GM-24x1,5 | |
| M 26 x 1,5 = 18-L | 8 | 36 | GM-26x1,5 | |
| M 30 x 2 = 22-L + 20-S | 8 | 41 | GM-30x2 | |
| M 36 x 2 = 28-L + 25-S | 9 | 46 | GM-36x2 | |
| M 42 x 2 = 30-S | 9 | 50 | GM-42x2 | |
| M 45 x 2 = 35-L | 9 | 55 | GM-45x2 | |
| M 52 x 2 = 42-L + 38-S | 10 | 65 | GM-52x2 | |