The stud is vibrating loose when in use. What can I do?
Make sure that you are using enough torque when screwing in the stud. Recommended settings range from 30 ft-lbs. and up. Also, consider the material being machined and the fastener being used. Harder materials will require higher torques and the smaller stud fasteners won’t be able to be torqued as high due to their hex size. Also, try using a Spiralock® tap which incorporates proprietary thread forms to improve resistance to vibration.
