Hardened steel pin, pin and washer fastener, washer for fastener, and pin-making method

摘要

The pin, for penetration into a steel, concrete, or masonry substrate, has a head (110), a tapered shank (120), a point (130) and a transition zone (140) between the tapered shank and the head. The point (130) is joined unitarily to the smaller end (124) of the tapered shank (120). The transition zone (140) has a tapered portion with a smaller end (144) joined unitarily to the larger end (126) of the tapered shank and a with larger end (146) joined unitarily to the head (110).