Patent ID: 9291183
Filing Date: 2016-03-22
CPC Classification: F16B

Claim Text:
1. An asymmetric thread impact drivable screw clip apparatus for use with an impact device, the apparatus comprising: at least one collating strip connecting a plurality of asymmetric thread impact drivable screws; each asymmetric thread impact drivable screw having an impact head; a conical shaped tip having a single constant ballistic insertion angle of approximately twenty eight degrees along the entire length of the conical shaped tip; a shank defining an axis, the shank having a shank diameter, the shank having a first end connected to the impact head and a second end connected to the conical shaped tip, the shank defining a single spiral of asymmetrical threads with an insertion flank peaking at a crest with the crest supported by a catch flank, the conical shaped tip extending to the crest defining a thread diameter larger than the shank diameter, the threads having a pitch distance and a thread diameter, the thread diameter being approximately twice the pitch distance; the insertion flank protruding from the shank at slide angle, the catch flank protruding from the shank at an impact supporting grip angle of approximately forty degrees.