I am replacing struts on my 2004 Toyota Camry LE (4 cyl). The rear suspension strut-to-axle carrier nuts/bolts (19mm) have a torque spec of 188 ft. lbs. in an official 2004 Camry Repair online manual.
I also have a Haynes Repair Manual for the same car. It specifies the following:
New nut: 188 ft. lbs.
Used nut: 145 ft. lbs.
Why would it specify a lower spec for a used nut? It doesn't make the same distinction when specifying the torque for the same, but larger (22mm) bolts/nuts on the front suspension. For the front, it simply says 155 ft. lbs.