The DIN 76A standard is published in a PDF document, which provides detailed specifications, dimensions, and tolerances for metric threads. The PDF document typically includes:

If you meant from an older edition (pre-2000s), that content is superseded by DIN 76-1.

Released under the full title "Design of thread run-outs and thread undercuts for metric ISO threads according to DIN 13," this standard defines the geometric shapes, dimensions, and tolerances for:

In the world of precision engineering and mechanical design, the smallest details often determine the success or failure of a component. One such critical detail is the transition point between a threaded section and the unthreaded shank of a bolt or screw. If this transition is too abrupt, it creates a stress concentration point, leading to fatigue failure. If it is too long, it wastes valuable material and space.