The DIN 76-1 standard is of the DIN Deutsches Institut für Normung e. V. (German Institute for Standardization). Sharing or downloading unauthorized copies violates copyright law, and legitimate acquisition supports the ongoing maintenance and development of these essential technical documents.
DIN 76‑1 is a German industrial standard titled “Fasteners – Thread run‑outs and thread undercuts – Part 1: For ISO metric threads in accordance with DIN 13‑1.” It specifies the dimensions and designations for thread run‑outs and thread undercuts on both external threads (e.g., bolts and screws) and internal threads (e.g., blind tapped holes). The standard applies to ISO metric coarse and fine pitch threads as defined in DIN 13‑1 and DIN ISO 261.
Specifically, defines the standard dimensions for an undercut on an external thread (such as a bolt or stud). By removing the incomplete threads and creating a clean groove, the mating internal thread (or nut) can screw completely down to the shoulder without interference. Why Use a DIN 76 Form A Undercut?
The DIN 76-1 standard is of the DIN Deutsches Institut für Normung e. V. (German Institute for Standardization). Sharing or downloading unauthorized copies violates copyright law, and legitimate acquisition supports the ongoing maintenance and development of these essential technical documents.
DIN 76‑1 is a German industrial standard titled “Fasteners – Thread run‑outs and thread undercuts – Part 1: For ISO metric threads in accordance with DIN 13‑1.” It specifies the dimensions and designations for thread run‑outs and thread undercuts on both external threads (e.g., bolts and screws) and internal threads (e.g., blind tapped holes). The standard applies to ISO metric coarse and fine pitch threads as defined in DIN 13‑1 and DIN ISO 261.
Specifically, defines the standard dimensions for an undercut on an external thread (such as a bolt or stud). By removing the incomplete threads and creating a clean groove, the mating internal thread (or nut) can screw completely down to the shoulder without interference. Why Use a DIN 76 Form A Undercut?
