A fastener, such as a nail or staple, includes {HEAD ~ a fastener body} having {TAIL ~ an impact surface} and a plug of filler material joined to the impact surface 
A fastener , such as a nail or staple , includes { HEAD ~ a fastener body } having { TAIL ~ an impact surface } and a plug of filler material joined to the impact surface
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH