Snap spade electrical connector and method of manufacture

A snap spade electrical connector comprising a generally flat U-shaped lug engaging part including a bight portion having a lug receiving open region, and a pair of legs extending longitudinally of each other from opposite ends of said bight portion on opposite sides of said open region and defining therebetween a longitudinally inwardly extending passageway opening into said open region, a pair of opposed inner projections on respective legs spaced from the free ends thereof and extending into said passageway toward and terminating short of each other to define a passageway constriction, said legs and inner projections being generally flat and coplanar with said bight portion, and a work-hardened region located in adjacent conforming relation with each of said projections for reinforcing the latter against repeated snap engagement of a lug through said constriction, said work-hardened regions each comprising a compressed location defining a surface recess on one side and being generally nonprotuberant on the other side.