An illustrative example shows dimensions used when the stud is stainless steel and the target is a material having a lower thermal expansion, such as about 13???10EE-6/degrees C. For these materials, in which the stainless steel has a thermal expansion of about 17.2???10EE-6/degrees C, and the thermal expansion of the target material is about 13.3???10EE-6/degrees C, the distal end of the threadle