I use this value regularly and, though it is not that hard to calculate, it appears next to nowhere (Practical Stress Analysis in Engineering Design being the best "exception") and yet about 70% of "Fastener Failures" come from a "bending load" applied to the "threaded portion" of a Fastener. -- Lew
Lew, you can still use your spreadsheet to select which fastener you want to use. You can then pop over into the generator and generate the part once you've decided its characteristics from your spreadsheet. The library is not a knowledge base - it is a dynamic geometry generation tool.