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Correcting torque values with coated bolt threads

Tue Aug 16, 2005 6:11 pm

I found these "rule-of-thumb" torque coefficient values for various bolt thread coatings right here on the fabulous internet:

Multiply the torque value by 0.75 when adding grease or oil to bolt threads. Multiply the torque value by 0.65 when adding an anti-seize compound. Multiply the torque value by 0.50 when adding gear oil, Never-Sieze, or Moly-Cote.

If you want exact torque coefficients for specific brands and compounds, get yourself a copy of "Handyman In-Your-Pocket" by Richard Young and Thomas Glover (Sequoia Publishing). It's a nice compilation of figures and formulas for just about anything you'd want and more.

http://www.amazon.com/exec/obidos/tg/detail/-/1885071299/qid=1124233813/sr=1-1/ref=sr_1_1/002-6799959-9310400?v=glance&s=books

Tue Aug 16, 2005 6:35 pm

Nice info Carl. Thanks for the effort, good work :!:
8)

Tue Aug 16, 2005 7:23 pm

Rudi - this would make another nice addition for the manual server! (hint, hint)

Great work lurker dude!
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