Fastener assembly

A method of assembling a fastener assembly, the method comprising:

• inserting a head of a threaded fastener into a central cavity of an engagement member, the engagement member defining an engagement feature that is engageable by a torquing member;
• coupling a retention member to the engagement member such that the head of the threaded fastener is retained within the central cavity;
• threading a lower base onto the threaded fastener;
• and
• abutting the lower base against the engagement member and/or the retention member such that the retention member is encased between the engagement member and the lower base.

A fastener assembly comprising:

• 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,
• wherein the outer profile of the engagement member is a truncated cone interrupted by the plurality of notches, and wherein the plurality of notches are located at non-uniform positions along the height of the truncated cone.