# DIN 7973 — DIN / ISO / BS fastener equivalents and the sizes where they are not interchangeable For DIN 7973, iso standard is ISO 1483; part is Slotted Raised Countersunk Head Tapping Screws, verified against its source on 2026-08-05. - **DIN standard:** DIN 7973 _(verified: appears in the quote below)_ - **ISO standard:** ISO 1483 _(verified: appears in the quote below)_ - **Part:** Slotted Raised Countersunk Head Tapping Screws _(verified: appears in the quote below)_ ## What the source says > DIN 7973 | ISO 1483 | | Slotted Raised Countersunk Head Tapping Screws | ## Source - https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards Last verified: 2026-08-05. Review by: 2029-08-04. Part of [DIN / ISO / BS fastener equivalents and the sizes where they are not interchangeable](https://referencesource.org/fastener-standard-interchangeability-exceptions/).