Steel or 1.4305 stainless steel.

Steel trivalent blue passivated.
Stainless steel, bright.

Studs with screw-in stop have been designed especially for gluing-in. They allow mechanical connecting elements with external thread to be made cost-effectively for small and medium-sized series.
The LOCTITE products 638 and 648 have proven themselves in practice as a successful bonding agent.
Technical data see K0404.

Safety data sheets (see downloads) can be found officially and in various languages on the internet under the search term: ‘Henkel Documents’.