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What's new

What changes on the site with each version: new standards and features, improvements and, always, any value we correct.

v1.4November 7, 2026

  • New

    Tightening torque calculator (VDI 2230), also reachable from the strength tables and the configurator.

  • New

    More property classes and clamped-part materials in the strength data.

  • Improved

    A calmer look, easier navigation on phones and better accessibility.

  • Fixed

    Small fixes to drop-downs, the theme and the phone menu.

  • Data

    Reviewed DIN 965 lengths, tap drill sizes and the edition named on each table.

v1.3October 25, 2026

  • New

    Seven new standards: DIN 7984, DIN 965, ISO 14579, ISO 14581, ISO 14583, DIN 985 and DIN 9021.

  • New

    The screw length calculator is now the Bolted joint configurator, with holes, counterbores and separate washers.

  • New

    Catalogue filters by head shape and drive.

  • Improved

    A new home page and logo, truer drawings and a reviewed light theme.

v1.2October 17, 2026

  • New

    Screw length calculator, with a drawing to scale, comparison of up to three joints, and copy or export.

  • New

    A home page, an introduction on every standard page and links from sizes to the calculator.

  • Improved

    Stricter checking, with an amber dot on values awaiting one more source.

  • Improved

    A tidier layout, better accessibility, faster loading and clearer legal texts.

  • Fixed

    Security updates.

  • Data

    DIN 433 corrected, unconfirmed values removed in DIN 125, DIN 912, DIN 934 and DIN 7991, DIN 912 counterbores added.

v1.1October 3, 2026

  • New

    Legal notice, terms of use, a way to report errors and this news page.

  • Improved

    Each page lists its standards; tables mark values to be confirmed and those that differ between DIN and ISO.

  • Improved

    A clearer look, search by everyday names such as allen or Inbus, and better accessibility.

v1October 3, 2026

  • New

    Fasteners page with search and filters, and a datasheet for each size.

  • New

    First standards: DIN 933, DIN 7991, DIN 934, DIN 125-A and DIN 433.

  • Improved

    Redesigned drawings, and each table says how far its values are checked.