Din 76a Pdf _top_ May 2026

DIN 76-1 (Form A) specifies dimensions for thread undercuts and run-outs on external metric threads to allow components to seat flush against a shoulder. The standard defines specific undercut diameters, widths, and radii based on the thread pitch to ensure proper assembly for standard requirements. The official technical documentation can be acquired through DIN Media or Beuth Verlag.

: While DIN 76A is "normal," there are also "short" (B) and "long" (C) versions depending on the required clearance and material strength. Related Standards in the DIN 76 Series din 76a pdf