An improved fastener
677,089. Making wall plugs. FERNBERG, E. B., and FERNTOL PATENTS, Ltd. Nov. 16, 1950 [Nov. 23, 1949], No. 30078/49. Class 83 (ii). [Also in Group XXV] Wall plugs are made from blanks and from strip stock and notched on each side at each end at 22, 24 forming shoulders 26 and prongs 28. The metal between them is twisted so that the shoulders project outwardly and the prongs inwardly of the plug which is finished by bending into U-shape about the line CL and at the same time curving transversely. The ends are also bent about the dotted lines shown to form lugs 31.