# DIN 911 — DIN / ISO / BS fastener equivalents and the sizes where they are not interchangeable For DIN 911, iso standard is ISO 2936; part is Hexagon Socket Screw Keys, verified against its source on 2026-08-05. - **DIN standard:** DIN 911 _(verified: appears in the quote below)_ - **ISO standard:** ISO 2936 _(verified: appears in the quote below)_ - **Part:** Hexagon Socket Screw Keys _(verified: appears in the quote below)_ ## What the source says > DIN 911 | ISO 2936 | | Hexagon Socket Screw Keys | ## 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/).