Since I've been doing quite a bit of work on this recently, here are some nice links I've found:
Thread sizing: http://www.boltdepot.com/fastener-in...aspx#measuring also - easy metric version
http://www.raygirling.com/metthrpt.htm Printable gaugs and tools: http://www.boltdepot.com/fastener-in...ner-Tools.aspx "Recommended Torque Table" Careful boys and girls.............
http://www.boltdepot.com/fastener-in...ed-Torque.aspx Good luck ! Frank