# 966 — Fastener standard equivalences: DIN to ISO / EN crossover

For 966, fastener description is Cross recessed countersunk (oval) head screws (Countersunk heads according to ISO); iso equivalent is 7047; interchangeability is Nominal size changed; head dimension changed; thread length changed; strength 8.8 omitted; penetration depth of cross slots changed; modification notes is Nominal size changed; head dimension changed; thread length changed; strength 8.8 omitted; penetration depth of cross slots changed, verified against its source on 2026-08-12.

- **DIN standard:** 966 _(verified: appears in the quote below)_
- **Fastener description:** Cross recessed countersunk (oval) head screws (Countersunk heads according to ISO) _(verified: appears in the quote below)_
- **ISO equivalent:** 7047 _(verified: appears in the quote below)_
- **Interchangeability:** Nominal size changed; head dimension changed; thread length changed; strength 8.8 omitted; penetration depth of cross slots changed _(verified: appears in the quote below)_
- **Modification notes:** Nominal size changed; head dimension changed; thread length changed; strength 8.8 omitted; penetration depth of cross slots changed _(verified: appears in the quote below)_

## What the source says

> Cross recessed countersunk (oval) head screws (Countersunk heads according to ISO) | 966 | 7047 | | 7047 | 7047 | 1994-10 | Countersunk raised head screws (common head style) with type H or type Z cross recess – Product grade A | Nominal size changed; head dimension changed; thread length changed; strength 8.8 omitted; penetration depth of cross slots changed |

## 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 **Cross recessed countersunk (oval) head screws (Countersunk heads according to ISO)**, as of 2026-08-12.

> Cross recessed countersunk (oval) head screws (Countersunk heads according to ISO) | 966 | 7047 | | 7047 | 7047 | 1994-10 | Countersunk raised head screws (common head style) with type H or type Z cross recess – Product grade A | Nominal size changed; head dimension changed; thread length changed; strength 8.8 omitted; penetration depth of cross slots changed |

Source: https://fullerfasteners.com/tech/din-iso-en-crossover-chart/

monsterbolts.com says fastener description is **Raised profile/diameter tolerance.**, as of 2026-08-12.

> DIN 966 | ISO 7047 | Check spec

Source: https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners

trfastenings.com says fastener description is **Cross Recessed Raised Countersunk Head Screws**, as of 2026-08-12.

> DIN 966 | ISO 7047 | | Cross Recessed Raised Countersunk Head Screws |

Source: https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards


### Interchangeability

fullerfasteners.com says interchangeability is **Nominal size changed; head dimension changed; thread length changed; strength 8.8 omitted; penetration depth of cross slots changed**, as of 2026-08-12.

> Cross recessed countersunk (oval) head screws (Countersunk heads according to ISO) | 966 | 7047 | | 7047 | 7047 | 1994-10 | Countersunk raised head screws (common head style) with type H or type Z cross recess – Product grade A | Nominal size changed; head dimension changed; thread length changed; strength 8.8 omitted; penetration depth of cross slots changed |

Source: https://fullerfasteners.com/tech/din-iso-en-crossover-chart/

monsterbolts.com says interchangeability is **Check spec**, as of 2026-08-12.

> DIN 966 | ISO 7047 | 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/).