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.