ISO 6475 provides a standard test method for determining the breaking torque and rotation at failure of metal bone screws. Test procedures for ISO 6475 are very simple, requiring that the screw be gripped to prevent slipping, torque is applied at a uniform angular velocity between 1 rpm and 5 rpm, and the ability to record maximum breaking torque and angle of rotation at failure. The test does not provide requirements for screw dimensions, but most tests are conducted on production screws meeting the HA, HB, HC, or HD specifications.
Equipment Required
By means of our testing expertise and modular product design, we will help find the solution that is right for you. Give our test engineers a call today for help configuring the best test machine and accessories according to your standard.
Recommended Test Machine
2 to 5650 Nm (18 to 50,000 in-lb)
Electromechanical Gear
The 160 Series Electromechanical Torsion Test Machines are best for static and quasistatic cyclic tests. As an affordable option to torsion testing, we find the 160 Series to be a popular choice.
1 to 200 Nm (9 to 1770 in-lb)
Electrodynamic Direct Drive
560 Series Electrodynamic Torsion Test Machines include high speed motors and actuators that are capable of performing static, dynamic and fatigue testing applications. The 560 Series is capable of more sophisticated dynamic fatigue applications for users with fatigue-life testing requirements.
