# DIN 1440 — DIN / ISO / BS fastener equivalents and the sizes where they are not interchangeable For DIN 1440, iso standard is ISO 8738; part is Medium type washers for pins, verified against its source on 2026-08-05. - **DIN standard:** DIN 1440 _(verified: appears in the quote below)_ - **ISO standard:** ISO 8738 _(verified: appears in the quote below)_ - **Part:** Medium type washers for pins _(verified: appears in the quote below)_ ## What the source says > DIN 1440 | ISO 8738 | | Medium type washers for pins | ## 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/).