# 7973 — Fastener standard equivalences: DIN to ISO / EN crossover For 7973, fastener description is Slotted Raised Countersunk Head Tapping Screws; iso equivalent is 1483, verified against its source on 2026-08-12. - **DIN standard:** 7973 _(verified: appears in the quote below)_ - **Fastener description:** Slotted Raised Countersunk Head Tapping Screws _(verified: appears in the quote below)_ - **ISO equivalent:** 1483 _(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: 2026-08-12. Review by: 2028-08-11. Part of [Fastener standard equivalences: DIN to ISO / EN crossover](https://referencesource.org/fastener-thread-standard-equivalence/).