Understanding DIN 1624: The Global Standard for 4-Prong Tee Nuts
Why was it withdrawn? The European Union sought to harmonize technical standards across member states to facilitate trade. Thus, the old national German standards (DIN) were either replaced or transformed into pre-standards . However, many legacy machines, repair contracts, and older engineering drawings still explicitly call out "DIN 1624." In these cases, you need the old standard for reference or to create a material substitution table. din 1624 standard pdf
It has been by European (EN) and international standards, primarily DIN EN 10106 and DIN EN 10107 (grain-oriented electrical steels) and DIN EN 10165 for magnetic properties measurement. Understanding DIN 1624: The Global Standard for 4-Prong
| Parameter | Specification | | :--- | :--- | | | Unalloyed spring steels (e.g., C55S, C67S, C75S, C85S) and micro-alloyed steels. | | Width Range | Typically 2 mm to 125 mm (depending on thickness and rolling method). | | Height (Thickness) Range | Typically 0.2 mm to 10 mm. | | Tolerance Class | Class A (Precision) and Class B (Standard). Class A tolerances are roughly half of Class B. | | Edge Condition | Defined as "rolled" (rounded) or "sheared" (square-cut). | | Surface | Cold-rolled, usually uncoated (may be lightly oiled for corrosion protection). | However, many legacy machines, repair contracts, and older
| Steel Grade (similar to) | C % | Si % max | Mn % | P % max | S % max | |-------------------------|-----|----------|------|---------|---------| | C55D (1.1205) | 0.53–0.58 | 0.35 | 0.60–0.80 | 0.035 | 0.035 | | C60D (1.1215) | 0.58–0.63 | 0.35 | 0.60–0.80 | 0.035 | 0.035 | | C67D (1.1231) | 0.65–0.70 | 0.35 | 0.60–0.80 | 0.035 | 0.035 | | C75D (1.1248) | 0.73–0.78 | 0.35 | 0.60–0.80 | 0.035 | 0.035 |
If you are looking for a full PDF, the standard typically includes these sections: : Product types and dimensions.