Close-up of a greasy threaded steel shaft end with a cotter pin…

Close-up of a threaded steel shaft end lying on a light concrete floor, with a bright metal cotter pin or wire retainer standing up through a cross-drilled hole. The threads and shoulder are coated in dark grease, and a light-colored collar or bushing sits behind the threaded section.

AI caption December 2004 · Photo 327 of 626