Patent ID: 6065918
Filing Date: 2000-05-23
Classification: F16B

Abstract:
A self-drilling blind rivet for joining two substrate layers, and comprising:a) a hollow sleeve member having a circular cylindrical outer surface elongated upon a straight axis between a forward extremity and outwardly flared trailing extremity and having an axially centered bore divergently tapered in going from said trailing to forward extremities, and an outwardly-expandable portion adjacent said forward extremity,b) an internal member comprised of a head portion having torque-applying means, an axially centered threaded shaft, and a leading extremity having a tip capable of drilling a hole in said layers when axially rotated in a first direction, andc) a wedge member threadably interactive with said threaded shaft and moveable along said axis toward said head portion by axial rotation of said internal member in a second direction, said movement of said wedge member causing expansion of said expandable portion.