This standard does not relate to all safety problems concerned with application. It bases on the dimensions of bone screws given in ISO 5835 and ISO 5832-1. The results obtained does not have a direct correlation to the application of screws. Annex A is normative and contains mechanical requirements to bone screws made from stainless steel. The informative Annexes B and C show the intercorrelations of international standards for bone screws, plates and the corresponding tools and a bibliography.