I understand you're looking for information on (often mistakenly typed as "DIN 76-A" – the "A" likely refers to an older edition or a specific section on thread run-outs and undercuts).
Do you need help for a custom machined part? din 76-a pdf
Disclaimer: This post is for informational purposes only. Always refer to the official, current version of the DIN standard for engineering decisions. DIN 76-1 I understand you're looking for information
DIN 76-A designates the standard ("normal") design for thread run-outs and undercuts for metric ISO threads, ensuring proper seating for external threads. It provides essential tool clearance and reduces stress concentrations, featuring a specific undercut width and radius for precision engineering applications. To review the technical specifications, you can find the DIN 76-1 standard on or through ANSI Webstore BAER Tools Thread Relief Explained: Function, DIN 76 & Practical Use Define DIN 76‑A and state its primary purpose
These dimensions (in mm) are standard for common bolt sizes using Form A: Thread Size ( ) Pitch ( ) Undercut Diameter ( ) Length ( ) Radius ( ) M10 M12 M16 4. Where to Find the Official PDF