# 84 — Fastener standard equivalences: DIN to ISO / EN crossover For 84, fastener description is Slotted cheese head screws – Product grade A; iso equivalent is 1207; interchangeability is Modifications of dimensions < 2,5; dimension of slots changed; partly nominal lengths deleted; strength 8.8 deleted; modification notes is Modifications of dimensions < 2,5; dimension of slots changed; partly nominal lengths deleted; strength 8.8 deleted, verified against its source on 2026-08-12. - **DIN standard:** 84 _(verified: appears in the quote below)_ - **Fastener description:** Slotted cheese head screws – Product grade A _(verified: appears in the quote below)_ - **ISO equivalent:** 1207 _(verified: appears in the quote below)_ - **Interchangeability:** Modifications of dimensions < 2,5; dimension of slots changed; partly nominal lengths deleted; strength 8.8 deleted _(verified: appears in the quote below)_ - **Modification notes:** Modifications of dimensions < 2,5; dimension of slots changed; partly nominal lengths deleted; strength 8.8 deleted _(verified: appears in the quote below)_ ## What the source says > 84 | 1207 | | | 1207 | 1994-10 | Slotted cheese head screws – Product grade A | Modifications of dimensions < 2,5; dimension of slots changed; partly nominal lengths deleted; strength 8.8 deleted | ## Sources disagree More than one authority states this, and they do not state the same thing. Both are reproduced with the source each came from. ### Fastener description fullerfasteners.com says fastener description is **Slotted cheese head screws – Product grade A**, as of 2026-08-12. > 84 | 1207 | | | 1207 | 1994-10 | Slotted cheese head screws – Product grade A | Modifications of dimensions < 2,5; dimension of slots changed; partly nominal lengths deleted; strength 8.8 deleted | Source: https://fullerfasteners.com/tech/din-iso-en-crossover-chart/ monsterbolts.com says fastener description is **Head dia/height tolerances may vary.**, as of 2026-08-12. > DIN 84 | ISO 1207 | Check spec Source: https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners trfastenings.com says fastener description is **Product grade A Slotted Cheese Head Screws**, as of 2026-08-12. > DIN 84 | ISO 1207 | BS4183 | Product grade A Slotted Cheese Head Screws | Source: https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards ### Interchangeability fullerfasteners.com says interchangeability is **Modifications of dimensions < 2,5; dimension of slots changed; partly nominal lengths deleted; strength 8.8 deleted**, as of 2026-08-12. > 84 | 1207 | | | 1207 | 1994-10 | Slotted cheese head screws – Product grade A | Modifications of dimensions < 2,5; dimension of slots changed; partly nominal lengths deleted; strength 8.8 deleted | Source: https://fullerfasteners.com/tech/din-iso-en-crossover-chart/ monsterbolts.com says interchangeability is **Check spec**, as of 2026-08-12. > DIN 84 | ISO 1207 | Check spec Source: https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners ## Source - https://fullerfasteners.com/tech/din-iso-en-crossover-chart/ - https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners - 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/).