In critical applications, that's not far from correct. The torque wrench monitors torque vs strain. If it goes a bit non-linear, it stops. The test department will sometimes test a sample of screws of the length and diameter in fastening parts, properly lubricated, etc., until they begin to yield. Then they back off the torque a bit during assembly. Another method is to torque them slightly beyond yield as determined from testing. If ever disassembled, the screws should be scrapped. You might find this in cylinder heads, or front suspension parts, etc. For more routine assemblies, it is not so necessary to take such precautions. If it comes down to a claim against the company, they would have computer records of each critical screw installation for their defense. Back in the 80's some bad actors put out counterfeit screws which would fail in a matter of hours after being torqued into assembly. They should still be in prison..
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Today's Featured Article - Product Review: Storm Covers - by Staff. We recently had a chance to try out the new Storm Cover for the Ford 9N, 2N and 8N tractor that is now being re-introduced to a new generation of Ford N-Series tractor owners. Originally produced more than 40 years ago, it is now enjoying a reproduction run that has been licensed by the Ford Motor Company. An original storm cover was used for the pattern, and this reproduction cover is indeed exactly as the original (of which we had previously only seen pictures of in miscellaneous old sale
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