A prosthetic mounting device for securing a prosthetic device on bone tissue. The device includes a bone screw and a prosthetic abutment attached to an aft end of the screw. The abutment engages and rigidly supports a prosthesis. A tapered collar extends radially outward from around the aft end of the threaded shaft. In one embodiment, the device also includes an installation handle connected to and extending axially from the abutment. A rotary driver is used to engage and rotate the handle. The handle detaches from the abutment under a predetermined torque load both to cue an installer that increased bone density requires that a different instrument be used and that bone density is sufficient to support both initial and long-term stabilization.

 
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