Abstract: A mechanical mounting is disclosed to mount thin stone slabs as the facade of buildings in which a bolt hole and a pin hole are drilled into the rear surface of the slab to intersect; with the pin hole to pass through the bolt hole and end in the slab therepast. A pin in the pin hole extends through a bolt in the bolt hole with the pin coupled to the bolt and extending in the pin hole into the slab on either side of the bolt hole. Both the bolt and pin may extend greater than 50% of the distance through the slab yet provide increased resistance to fracture for forces acting either to draw the bolt out of the slab or push the bolt through the slab.

Abstract: A mechanical mounting is disclosed to mount thin stone slabs as the facade of buildings in which a bolt hole and a pin hole are drilled into the rear surface of the slab to intersect and with the pin hole to pass through the bolt hole and end in the slab therepast. A pin in the pin hole extends through a first bolt in the bolt hole with the pin coupled to the first bolt and extending in the pin hole into the slab on either side of the bolt hole. The pin extends rearwardly out of the slab to be coupled to a second bolt. The first and second bolt members are coupled to a support frame and form with the pin a rigid truss to assist in bearing the weight of the slab without deformation of the first bolt.