This Standard is included in DIN Handbook 185. Applies to drop forged and hammer forged unmachined parts with or without nose for single hooks on lifting means and load carrying means of lifting appliances, which are used primarily for the suspension of loads. The correlation of the lifting capacity of the single hooks to the strength classes and driving gear groups is in accordance with DIN 15400. The dimensions specified for l1 apply to single hooks forming part of a lifting hook suspension conforming to DIN 15411. If in exceptional cases, e.g. for existing lifting appliances, different lengths l1 are needed, this must be mutually agreed on ordering.