Sometimes less is more. This V2A stainless steel Hardware is anchored into your granite plaque.
 
The price is an upgrade instead of the regular hardware.
 
finely milled from solid V2A stainless steel
with an M8 threaded rod milled into the top and cemented into a hole drilled into the Granite plaque. 
Ø 25mm
25mm wall offset
 
Suitable for indoor and outdoor mounting in any environment
 
Mounting instructions, screws and anchors mor most wall types are included.