Quick attaching and detaching nut

A nut assembly arranged for mounting on a threaded member, the nut assembly comprising:

• a. an axially oriented capture nut comprising:
• i. an outer, wrench-engaging surface, a top surface and a bottom surface;
• ii. a bowl defining a plurality of slanted, entirely flat, planar surfaces slanting downwardly and inwardly from the capture nut top surface toward the capture nut bottom surface to a depth D, each flat planar surface having opposed vertical edges, each flat planar surface being aligned about such axis and sharing such opposed vertical edges with an adjacent of such flat planar surfaces;
• and
• iii. a bore through the bowl on the axis of the capture nut for passing a threaded member through the capture nut;
• and
• b. a nut comprising:
• i. a top surface, a bottom surface, and an outer surface comprising a corresponding plurality of slanted, entirely flat, planar surfaces extending downwardly and inwardly from the nut top surface to a depth D′ for mating engagement with the bowl of the capture nut;
• and
• ii. an internally threaded bore, coaxial with the bore of the capture nut, for engagement with the threaded member;
• wherein the nut is divided vertically along the axis into two separate, opposed nut halves each having a complementary vertical face facing the complementary face of the opposing nut half.