Understanding DIN 1624: The Global Standard for 4-Prong Tee Nuts
The defining feature of DIN 1624 is the four sharp claws. These prongs bite into the substrate, providing torsional resistance
Searching for a is an understandable first step when dealing with legacy spring steel wire. This article has provided the core technical data from that withdrawn standard, explained why copies are rare, and offered legal pathways to obtain a historical document.
This standard covers cold-reduced flat steel products (strip and cut lengths) made from mild unalloyed steels .
When specifying new products, one should refer to the current EN standards. However, if maintenance work is being performed on machinery built prior to 2000, the original DIN 1624 specifications (found in older PDF archives) may still be relevant to ensure material compatibility.
Must comply with ISO metric thread standards (typically 6H tolerance).
If you are designing a new product, you use DIN 1624. Instead, purchase the current standard: DIN EN 10270-1:2017 (current version as of 2025).