Patent attributes
A blind bolt extends through a hole which extends through a first and second member. An anchor is disposed on the distal end of a blind bolt shaft, and the anchor has expanded and contracted configurations. An anchor is disposed on the distal end on a shaft and is positioned beyond the distal end of the hole engaging a surface of the second member thereby holding the shaft in the hole. A shear sleeve is disposed on the blind bolt proximate to the distal end of the shaft and has a length sufficient to extend across the second member, across the interface between the first and second members and partially across the first member. A nut is threaded on the threads of the shaft, and a collapsible cylinder is disposed on the blind bolt shaft between the sheer sleeve and nut. The collapsible cylinder and the sheer sleeve have a combined length such that when the anchor is in the expanded configuration and the sheer sleeve and the collapsible cylinder are positioned on the shaft within the hole, the collapsible cylinder pushes the sheer sleeve to a position extending across the interface between the first and second members as the nut is tightened on the shaft. The collapsible cylinder may be a deformable crushable sleeve or a telescoping sleeve.
