T-nut with indented leading and trailing edge flanges

A T-Nut of the type having a generally tubular barrel with an interior female thread along at least a portion of the barrel, and a flange at one end of the barrel extending substantially normal, prongs formed integrally with the flange, and bent at an angle thereto to embed in a work piece for use in a T-Nut insertion machine having a feed means, and comprising;

• planar side portions on the flange adapted to ride in a feed means, and having substantially linear side edges parallel to one another in spaced apart relation, to guide the T-Nut along the feed means;
• end edges on the flange, at the leading and trailing edges of the flange which end edges are adapted to abut with respective end edges on leading and trailing T-Nuts in the feed means;
• generally median U-shaped depression formed in each of said leading and trailing edges of said flange;
• and,
• generally arcuate recesses formed in each of said end edge flanges, on either side of said U-shaped depression, whereby to provide a generally scalloped end edge, along each of said leading and trailing end edges of said flange.