Patent ID: 6561741
Filing Date: 2003-05-13
Classification: F16B

Abstract:
An anti-cross threading fastener, comprising:a substantially round shank member having first and second ends and a continuous helix comprised of a plurality of threads around a circumference of said shank member, the plurality of threads being adapted to mate with corresponding threads of a receiving member; a lead thread of the plurality of threads proximate the first end of said shank member; and a remaining plurality of threads, wherein the lead thread merges into the remaining plurality of threads to form the continuous helix; wherein the distance between a first line drawn perpendicular to the longitudinal axis of the fastener and through the middle of the crest of the forming lead thread and a second line drawn perpendicular to the longitudinal axis of the fastener and through the middle of the crest of an adjacent full thread decreases as the lead thread is formed into a full thread, and wherein the longitudinal axis of the fastener, the first line drawn perpendicular to the longitudinal axis of the fastener, and the second line drawn perpendicular to the longitudinal axis of the fastener are in the same plane.