There is a little book I use all the time. It is not a factory service manual, it is called "Pocket Ref" by Thomas J. Glover and available from Sequoia Publishing, Inc, P.O. Box 620820, Dept 101, Littleton, CO 80162-0820, phone #303 972-4167. It cost $7.99 in 1995, today
Anyway on page 272 it lists bolt torque by size (1/4" to 2") and type (SAE Grade 0-1-2 thru SAE Grade 8) and the effect of various kinds of lubrication on torque. PM me your size & type and I will look it up. As an example a 3/8"16(NC)Grade 8 dry is 47 ftlbs