Various embodiments of a flexible fastener strip assembly include two or more straight hook fastener elements and an elongated connecting member for joining the hook fastener elements in an end-to-end relationship. Each hook fastener element includes a plurality of hooks and defines at least one elongated hole that extends through an upper and a lower surface of the hook fastener element. The elongated connecting member includes a spine and two or more protrusions that extend from one side of the spine in a width plane, and a width dimension of the spine in the width plane is greater than a thickness dimension of the spine in a thickness plane. Each protrusion is engaged into one of the elongated holes of the hook fastener elements such that the spine is disposed adjacent the lower surface of the hook fastener elements.