BS 3531-5.4:1993

This standard BS 3531-5.4:1993 Implants for osteosynthesis. Bone screws and auxiliary equipment is classified in these ICS categories:

• 11.040.40 Implants for surgery, prosthetics and orthotics

This International Standard specifies the dimensions and tolerances of metal bone screws with conical under-surface of the head used in surgery.

NOTE The interrelationship of International Standards dealing with bone screws, bone plates and relevant tools is shown for information in Annex A.

Dimensions and tolerances for bone screws of nominal sizes 4,5 mm, 4,2 mm, 4,0 mm, 3,9 mm, 3,5 mm and 2,9 mm.