update:
well the OEM thread/pitch bolt/nut size is a Hex head m10x1.25 [75-85mm long for the bolt]..(if not oem the BOLT must be a grade 8 or higher..
honda/acura dealer shipps near me were asking almost 15$( for one bolt.. but if you are lucky you may find the correct size bolt/nut at a local hardware store, some have, my self have not..
I ended up just buying a grade 5 m10x1.25 nut and will be reusing the stock oem bolt since it is still in good shape.
Now that this is settled its time for me to install my Teins along with my Energy supension master bushing kit & rear trailing arm bushings!