NZ333349A - Pin, for a steel, concrete or masonry substrate, having a tapered portion between the head and shank - Google Patents

Abstract

A pin 100, for axial, non-rotational penetration into a steel, concrete, or masonry substrate so as to secure a workpiece to the substrate when driven into the substrate by a fastener-driving tool, comprises a tapered shank 120 defining a predetermined conical angle and having a smaller end 124 and a larger end 126, a head 110 joined to the larger end 126 of the shank and having an outer diameter dimension, a point 130 joined unitarily to the smaller end 124 of the shank and conforming substantially to an ogive, and a transition zone 140 having a tapered portion 142 defining a predetermined conical angle and interposed between the shank and the head. Zone 140 has a smaller end 144 joined unitarily to the larger end of the shank and a larger end 146 joined unitarily to the head. The outer dimension of the head 110 may be approximately 2.35 times greater than the larger end 146 of the tapered portion of zone 140. The shank may be knurled and the point of the pin rounded. The pin may be fabricated from carbon steel wire. A washer 200, having an outer diameter dimension corresponding to that of the head, may be mounted on the shank and movable toward the head when the pin is driven into a substrate.