Joined: Aug 2010
Posts: 12,727
Likes: 2,105
From: Madison, WI
Bikes: 1961 Ideor, 1966 Perfekt 3 Speed AB Hub, 1994 Bridgestone MB-6, 2006 Airnimal Joey, 2009 Thorn Sherpa, 2013 Thorn Nomad MkII, 2015 VO Pass Hunter, 2017 Lynskey Backroad, 2017 Raleigh Gran Prix, 1980s Bianchi Mixte on a trainer. Others are now gone.
Probably a generic value for an M5 bolt would apply. Since I never used a torque wrench on an M5 bolt, I can't help. Try Google search.
I recommend blue loctite (or similar) on all rack bolts by the way.
The only bolts on a bike that I use my torque wrench on are my crank arm bolts on a square taper bottom bracket. Other fittings I go by feel.