US Patent 10421180 Security system for fasteners

A security system for fasteners includes a plug configured to be received by a fastener so that the fastener cannot be manipulated by a tool in the usual manner. A magnetic insertion tool may be used to seat the plug. A removal tool includes an extraction head configured to mate with the plug so that the plug can be removed when it is necessary or desirable to manipulate the fastener. A slide hammer assembly may provide the necessary force to unseat the plug.