.. role:: blue
   :class: blue

MbThread Thread Graphic Symbol
==============================
.. _MbThread_Thread_Graphic_Symbol_:

.. kernel version: 

The :blue:`MbThread` class is declared in the *mb_thread.h* file.

The MbThread thread graphic symbol is defined by the local thread
coordinate system place, the initial thread radius on the surface
*radObj*, the initial thread radius inside the body *radThr*, the thread
length *length*, the thread taper angle *angle*, the thread name **name**,
and the set of bodies **bodies**. The object also has some additional data
that is not mandatory and is used to speed up the operation of the
object methods.

The axis of the threaded connection is directed along the
**place**.\ *axisZ* axis. The name is used to identify the thread graphic
symbol among planar projections of the faces of bodies in the **bodies**
set. The thread graphic symbol is shown in Fig. 1.

.. figure:: /MODELER/SPECIAL_OBJECTS/pictures/O.6.12.1.png
   :width: 12cm
   :align: center

   Fig. 1

The thread graphic symbol describes an element of the threaded connection
of the geometric model and is used to construct planar projections of
threaded connections.