This question is only for those that built there ej-ea adapter plate,but instead of siamiezing the upper holes threaded a screw instead.If you threaded two screws instead of siamizing what size threads did you use?Thanks.My plate is steel..

I used 3/8 studs towards the D/R and 5/16 for the engine side grade 8 , used 5/16 so I wouldnt need to drill out the threads on the engine

So the 3/8 where they NF or NC same with the 5/16 .Or does it matter?lets see fine threads for adjustment and coarse for putting stuff together..I think.

So the 3/8 where they NF or NC same with the 5/16 .Or does it matter?lets see fine threads for adjustment and coarse for putting stuff together..I think.

 

the studs I used are course on one end and fine on the other, I tap the plate course and use thread locker on them then use a fine nut on the other end

I threaded the 4 holes in the adaptor plate with the 10x1.25mm thread all the other bolts are on the Subaru's, but I'm in Australia, and metric is what we have.

I used two opposing bolts on mine; I helicoiled them as well.