The collar nuts (flanged nuts) are manufactured accoring to DIN 6331.
This article 23080.0016 - Collar Nuts DIN 6331 (height 1,5 d) / (d1: M16) is one variant of the article group Collar Nuts DIN 6331 (height 1,5 d) (EH 23080.)
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
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.