Patent ID: 7240917

Claim:
An actuatable fastener comprising: a body including a head and a shank, said body including an interior chamber partially defined by a side wall extending from said head into said shank and an end wall positioned in said shank; a member disposed in said chamber; and an initiator actuatable to produce combustion products in said chamber that act on said member to move said member in a first direction in said chamber to strike said end wall, said member having portions that deform prior to striking said end wall when said member moves in said first direction, said member striking said end wall creating a fracture in said shank separating at least a portion of said shank from a remainder of said shank, said combustion products moving said member beyond said fracture at least a predetermined distance to move said at least a portion of said shank at least said predetermined distance from said remainder of said shank, wherein the member does not contact said end wall of said shank before said initiator is actuated.