Abstract: A fastener comprising a head; a first section extending from the head and defining a first outside diameter, wherein the first section is unthreaded; and a second section co-axially extending from the first section and defining a second outside diameter. The second section being threaded and the second outside diameter being smaller than the first outside diameter.

Abstract: A quick release bellow seal guard for use with a shaft assembly having a first guard member having an open central region and a second guard member releasably coupled to the first guard member also having an open central region. The first guard member further includes a wall extending from a base portion to a distal end. The second guard member further includes a proximal end releasably coupled to the distal end of the first guard member to collectively define an interior guard volume. The quick release bellow seal guard further includes a seal member sealingly engaging at least one of the first guard member and the second guard member and further sealingly engaging the shaft assembly. The seal member is positioned within the interior guard volume.