Abstract: A fastener assembly includes a threaded fastener having a threaded shaft and a head coupled to the threaded shaft, an engagement member having a central cavity and an outer profile having a plurality of notches cut therein to define an engagement feature that is engageable by a torquing member, a retention member configured to engage the engagement member and retain the head of the threaded fastener within the central cavity of the engagement member, and a lower base threaded on the threaded shaft and into abutment with the engagement member and/or the retention member.