creo4 Drawing Setup option documentation for: draw_attach_sym_width 
draw_attach_sym_width
Sets width of leader line slashes, integral signs, and boxes.
Default and Available Settings:
default* - Uses value set for draw_arrow_width
value - Type a value for the width of leader line slashes, integral signs, and
boxes.
|  The measurement is controlled by the drawing_units setup file option. |