US Patent 10189150 Torque limiting locking cap

A torque limiting driver system, including: a torque limiting driver including: a handle with a locking cap engagement protrusion; a shaft with a cam portion including a cam mating feature; and a locking cap including: a mating recess including a plurality of scallops along the outer edge of the mating recess and wherein the plurality of scallops are configured to interface with the first mating feature; a through-hole with through-hole mating feature configured to interface with the cam mating feature, wherein the locking cap is configured to engage the torque limiting driver to lock the rotation of the shaft with respect to the handle.