Helicoil Insert Length Selection Calculator has been developed by using ASME B18.29.1 – 1993 standard (Helical Coil Screw Thread Inserts – Free Running and Screw Locking (Inch Series)) and NASM 33537 standard
(Insert, Screw Thread, Helical Coil, Inch Series, Coarse and Fine Thread, Standard Assembly Dimensions for) and will aid
to calculate the helicoil insert length selection to develop the full load value of the bolt rather than stripping the tapped material.
The length of engagement of a bolt in an insert is generally determined by strength properties. The engineering practice of balancing the tensile strength of the bolt material against the shear strength of the boss material also applies to helicoil inserts.