Jul 17, 2012 · Surface finish makes a difference, though; plating can cause the factor to range between 0.15 and 0.33; 0.22 is suggested for bolt, as an example, the required torque to achieve a 5,000 lb. clamping load will be (0.2)(5,000) (0.375), or 375 lb-in. (31 lb.ft.). But what is the …
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