BZP Form A Flat Washers

https://springfasteners.co.uk/product-category/flat-washers-din-125-bzp/

DIN 2093 Belleville Washers / Disc Spring Washers

https://springfasteners.co.uk/product-category/disc-springs/disc-springs-belleville-washers/

Shim Washers DIN 988

https://springfasteners.co.uk/product-category/shimsupport-washers-din-988/