Tensile force for non-undercut threaded rod


A threaded rod, also known as a stud, is a relatively long rod that is threaded on both ends; the thread may extend along the complete length of the rod.They are designed to be used in tension. Threaded rod in bar stock form is often called all-thread. For studs that are not completely threaded, there are two types of studs: full-bodied studs, and undercut studs. Full-bodied studs have a shank equal to the major diameter of the thread. Undercut studs have a shank equal to the pitch diameter of the screw thread. Undercut studs are designed to better distribute axial stresses. In a full-bodied stud the stresses are greater in the threads than in the shank. The allowable tensile force for a non-undercut threaded rod is depended on the nominal diameter and the ultimate tensile strength of the material.

Related formulas


F_τThe tensile force (N)
UTS The ultimate tensile strength of the material (Pa)
dThe nominal diameter (m)