Summary: 30 to 50 percent giving an assembly efficiency of only 0 85 according to Table A7 19 of the book cited above Failure to use a torque wrench gives much greater variations Figure 11 Using a torque wrench to tighten nuts at flanges The procedure for tightening the nuts is just as important as the other factors The tightening
Image Dimensions: 313 x 207
Image originally found here.