DIN 933 steel 8.8U, hot-dip galvanised (TZN)
- Manufactured with thread undersize in tolerance class 6AZ (thread play) before surface protection is applied (DIN EN ISO 10684).
- The bolts are ISO-compliant after hot-dip galvanisation.
- The bolts must not be used with nuts that have an oversized thread. This can create problems in the bolted joint and may cause the connection to fail.
NoticeDIN 933 has been withdrawn and replaced by ISO 4017. There is some similarity (nominal dimensions extended | Width across flats changed for M10, M12, M14 and M22).
