my experience on a 91. & 94 sr
16mm thread pitch. fine thread.
ive not found an AN or JIC that will thread.
i bought banjos with new bolts .the banjo had -6 AN fittings. this is the only way i got my mitsu cooler to work. i then used the replaceable field fittings and hose.
a note on that hose. if u buy from napa, be sure they dont sell u push-lok hose for a reusable end. ahem, i did not catch this slip, though i remembered thinking the hose was a bit mushy for hydraulic hose. and of course -it leaked but not until i was several hundred miles from home
or go push lok if they have the vice to install hose. do not use hose clamps on pushlok.
u might know all of this already but i share anyway