ASTM F543 Annex A1

ASTM F543 Annex A1

Bone Screw Testing for Torsional Properties

Medical bone screws are tested for torsional yield strength, maximum torque, and breaking angle. The bone screw is placed in a holding device such as a split collet. The associated driver instrumentation is used to apply a torque at a constant rate of rotation until failure. Torque and rotation data is collected.