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I am looking at the specifications for thread lockers, and henkel/loctite specify "Torque break" and "Torque prevail" in in./lb. as shown in the link below:

http://www.na.henkel-adhesives.com/industrial/product-search-1554.htm?nodeid=8797951950849&msdsLanguage=EN_US&selectedTab=technical

I had expected to see the torque required to break the "lock", and to continue turning in in.⋅lb. (or N⋅m) as described on wikipedia:

https://en.wikipedia.org/wiki/Thread-locking_fluid

What does this "Torque break" value mean, and how is it calculated?

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  • $\begingroup$ Why would you trust wikipedia here? Henkel makes the stuff... $\endgroup$ – Solar Mike Mar 5 '18 at 14:38
  • $\begingroup$ @solar-mike My point was regarding the units they use - not the values provided. I have always measured torque in N⋅m or ft.⋅lbs., so am trying to determine what their "inches per pound" unit equates to. $\endgroup$ – DougC Mar 5 '18 at 15:10
  • $\begingroup$ I would guess that's an error on the data sheet "in/lb" should be "in-lb". Try contacting the company if you need to verify. $\endgroup$ – agentp Mar 5 '18 at 15:49
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    $\begingroup$ indeed here is a data sheet with the same number and correct units: google.com/… $\endgroup$ – agentp Mar 5 '18 at 15:52
  • $\begingroup$ As already suggested, it's probably just a typo or mistake. The correct unit is in*lb. $\endgroup$ – am304 Mar 5 '18 at 17:20

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