How to get a metal innerthread in natural stone, composites, HPL panels and even tempered glass?

How to get a metal innerthread in natural stone, composites, HPL panels and even tempered glass?

Yes, the knock-inn Keep-nut insert can be mounted in the pre-drilled hole using a hammer. 

No use for adhesives!

These are available in M4 up to M6 innerthread and even with an outerthread in M6 in stainless steel 303 and 316L (with an ETA15/0615 for wall cladding).