Review on LuckIn Standoffs Stainless Advertising Mounting by Alex Cassanova

So they don't look anything like the ones I've seen for glass plaques because they don't have a reduced diameter center going through the glass. This means that the male thread will make contact with the inner diameter of the glass hole if that is the application you chose them for. They come with two soft plastic washers for each side of the material to be mounted. I used mine to mount the guitar cases to the walls with a very neat, secure mount. The back of my displays is 0.5" plywood, so I used a 3/4" Forstner bit to countersink the back and then a 1/2" Forstner bit to countersink a ready to make through hole on front very clean edge on both with very minimal breakage Once you place the sockets in the drill hole and use a spirit level to secure them to the wall or surface to be installed you can mark the surface straight through the gap, the weight Your fasteners will be held by the bore and male threads, and since you used a 1/2" bit to go through the 3/8" thread, don't bind as there is some radial play are. I like the clean look of these.