Patent ID: 8197167

Claim:
A load indicating fastener comprising: a load indicator including: an annular body having an inner surface defining a through hole with an inner diameter, and a plurality of protuberances integral with the annular body struck and partially sheared from the annular body to project from a first face of the annular body and leave a corresponding plurality of indentations in a second face of the annular body opposite from the first face; a fastener body including: a head defining a contact surface; and a shank depending from the contact surface at its top and having a free end opposite the top and an outside surface with an outer diameter and a radially extending member with a bottom surface; and a securing mechanism including the radially extending member and retaining the load indicator on the shank of the fastener body with the protuberances proximate to and in alignment with the contact surface, the protuberances having an uncompressed height such that the distance between the bottom surface of the radially extending member and the second face is greater than the height when the protuberances are in non-compressive contact with the contact surface.