Implants for surgery — Metal bone screws with hexagonal drive connection, spherical under-surface of head, asymmetrical thread — Dimensions
外科植入物——六角传动连接金属骨螺钉 头部下表面为球形 不对称螺纹——尺寸
Gives dimensions and tolerances and the code for screw thread. Screws with shallow thread shall be as given in figures 1 and 2 and tables 1 and 2. Screws with deep thread shall be as given in figures 3 and 4 and tables 3 and 4. Marking and packaging shall be in accordance with ISO 6018. An example for combined screw is given in annex A. An interrelationship of International Standards dealing with bone screws, bone plates and relevant tools is given in annex B. Bibliography is given in annex C.