| Thread | Metric conical male thread acc. DIN 158 |
| Abbreviation | M keg |
| Designation | DIN 158 – M 30 x 2 keg |
| Type of thread | female thread cylindric (M-thread acc. DIN 13) male thread thread conical (cone 1:16) |
| Application | Conical outside threads for tube connections, with sealant (see page 10) sealing in the thread. |
| Description | Threads acc. to this norm are used for pipe connections with conical screw-in plugs size C, which are to screw into cylindric screw-in holes size Z, both acc. to DIN 3852 part 1 (see page 8 – 10). The distance a of the relating level corresponds to DIN 3852 part 1. The conical outside thread of this norm shows at the relating level &147; the same effective diameter as the relating cylindric inner thread acc. DIN 13, so it can be manually screwed in until that relating level.The adjustment power created by using of a suitable tool increases the thread reach and seals the screw connection supported by a suitable sealant (e.g. hemp or Teflon). Outside-, effective and core diameter show the same ±tolerance, the tabular form list shows averages only. The cylindric inner thread acc. DIN 13 shows the tolerance -4H5H, to keep the free space between the crest of thread and the leakage space as small as possible. |
| external thread | P | h | outside Ø | effective Ø | core Ø | a | i |
|---|---|---|---|---|---|---|---|
| M 8 x 1,0 keg | 1 | 0.613 | 8 | 7.35 | 6.773 | 2.5 | 8 |
| M 10 x 1,0 keg | 1 | 0.613 | 10 | 9.35 | 8.773 | 2.5 | 8 |
| M 12 x 1,5 keg | 1.5 | 0.92 | 12 | 11.026 | 10.16 | 3.5 | 12 |
| M 14 x 1,5 keg | 1.5 | 0.92 | 14 | 13.026 | 12.16 | 3.5 | 12 |
| M 16 x 1,5 keg | 1.5 | 0.92 | 16 | 15.026 | 14.16 | 3.5 | 12 |
| M 18 x 1,5 keg | 1.5 | 0.92 | 18 | 17.026 | 16.16 | 3.5 | 12 |
| M 20 x 1,5 keg | 1.5 | 0.92 | 20 | 19.026 | 18.16 | 3.5 | 12 |
| M 22 x 1,5 keg | 1.5 | 0.92 | 22 | 21.026 | 20.16 | 3.5 | 14 |