In general, the dimensions of the products are expressed in millimeters, except for the special inch products and for inch-based threads and holes.
Please note that we use the German formatting for decimals, which means that a comma is used instead of a point. For example, a one-half inch hole would be noted as 0,5 instead of 0.5.
Threads are produced in accordance with ISO 13, “medium“ tolerance class, i.e. H6 for female threads and g6 for male threads. External threads up to 60 mm are generally supplied as full thread. Screws from 70 mm long are partially threaded and generally have 60 mm long threads.
THREAD PITCH CHART
Note: All metric threads are supplied with coarse thread pitch unless otherwise specified.
| Metric Coarse Thread | Metric Fine Thread |
| M3 X 0.5 | M3 X 0.35 |
| M4 X 0.7 | M4 X 0.50 |
| M5 X 0.8 | M5 X 0.50 |
| M6 X 1.0 | M6 X 0.75 |
| M8 X 1.25 | M8 X 1.00 |
| M10 X 1.5 | M10 X 1.25 |
| M12 X 1.75 | M12 X 1.50 |
| M14 X 2.00 | M14 X 1.50 |
| M16 X 2.00 | M16 X 1.50 |
| M18 X 2.50 | M18 X 1.50 |
| M20 X 2.50 | M20 X 1.50 |
| M22 X 2.50 | M22 X 1.50 |
| M24 X 3.00 | M24 X 2.00 |