A torque wrench is used on a 3/4-10 UNC bolt in an automobile final assembly plant. A torque of 70 ft-lb is generated by the wrench. If the torque coefficient= 0.17, determine the tensile stress in the bolt.
The designer has specified that a 3/8-16 UNC lowcarbon bolt (3/8 in nominal diameter, 16 threads/ in) in a certain application should be stressed to its proof stress of 33,000 lb/in2 (see Table 32.2). Determine the maximum torque that should be used if C = 0.25.
