RE: [CAD_CAM_EDM_DRO] fastener thread pitch choice

Well stated Andy!! Chuck

>It is true that a fine thread fastener is stronger, because the root

diameter is larger.

It is also true that you get more mechanical advantage using fine
threads-they will be "tighter" with the same amount of torque used on the
screwdriver or wrench.

It is also true that fine threads will more easily pull out of softer
materials-that's why studs used in engines commonly have 2 different
threads-a coarse one that screws into the casting, whether it is cast iron
or aluminum-and a fine thread for the nut at the other end.

______________________________________
Andy Wander






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