Din 76-a Pdf (2024)

is a technical standard that defines the dimensions and geometry for thread run-outs and thread undercuts . These features are essential for allowing a threaded part to be fully seated against a surface and for ensuring tools can exit cleanly during the manufacturing process. Overview of DIN 76-1 (Type A)

While you should always consult an official DIN 76-A PDF chart for precise manufacturing tolerances, here are the standard dimensions for common metric thread pitches: Thread Pitch ( Undercut Diameter ( Undercut Width ( Undercut Width ( Corner Radius ( (e.g., M3) 0.7 mm (e.g., M4) 0.8 mm (e.g., M5) 1.0 mm (e.g., M6) 1.25 mm (e.g., M8) 1.5 mm (e.g., M10) 1.75 mm (e.g., M12) 2.0 mm (e.g., M16) 2.5 mm (e.g., M20) din 76-a pdf

Instead, engineering drawing standards allow you to call it out using a standard note or a simplified representation. : DIN 76 – A is a technical standard that defines the dimensions

Without an undercut, a nut or a part with a flat bearing face cannot be screwed flush against a bolt head because of the incomplete "run-out" threads. : DIN 76 – A Without an undercut,

DIN Media / Beuth Publishing (for the latest 2016-08 version).

: Using DIN 76-A ensures that manufacturers and engineers globally use the same dimensions for consistent assembly fits. Accessing the Full Standard