Fixture nuts according to DIN 6330 have a spherical surface to match conical seats DIN 6319 (EH 23050.).
With this combination of fixture nut and conical seat, non-parallel clamping surfaces can be compensated.
This article 23070.0016 - Fixture Nuts DIN 6330 (height 1,5 d) / with lateral spherical bearing surface, form B (d1: M16) is one variant of the article group Fixture Nuts DIN 6330 (height 1,5 d) (EH 23070.)
For torques and strengths please refer to appendix - Technical Data -
Compliant according to Directive 2011/65/EU and Directive 2015/863
No SVHC substances with more than 0.1% w/w contained - SVHC list [REACH] as of 17.01.2022
No Proposition 65 substances included
https://www.P65Warnings.ca.gov/
This product does not contain any substances designated as "conflict minerals" such as tantalum, tin, gold or tungsten from the Democratic Republic of Congo or adjacent countries.