Patent ID: 7143497
Filing Date: 2006-12-05
Classification: F16B,Y10T

Abstract:
1. A method for anchoring an elongate fastener in a friable material, using a self-drilling anchor, said method comprising: providing a self-drilling anchor comprising a body having an axis, a flanged rear end, a drilling front end and a generally cylindrical portion therebetween having an outer surface with a thread disposed thereon; driving said self-drilling anchor into said friable material by placing said drilling tip at a desired location on a surface of said friable material, engaging a driver of a rotary driving tool with said flanged rear end, and rotating said self-drilling anchor until said self-drilling anchor drills through said friable material and said thread engages said friable material, and continuing to drive said self-drilling anchor forward until said flange is seated into said friable material flush or countersunk with respect to said surface of said friable material; and inserting said elongated fastener into said axial bore until a tip of said elongated fastener engages and slides along said generally rearward facing shoulder and continues in a generally forward direction until said legs are forced into an anchoring mode wherein said legs are pivoted apart from one another.