The invention is a staple comprising a bridge member having a top surface and an opposing bottom surface defining a thickness between and two lateral edges defining a width therebetween and either the thickness or the width includes a center flared area, such as a “diamond-like” shape meaning that it has a v-shape on opposing lateral edges flanked by opposing fillets to form an inserter mount area and the staple has a pair of legs spaced apart along the axis and each joined at a rounded flared shoulder to the bridge member. In a four-legged version the bridge has a waist.