13 STRUCTURAL FASTENERS-NAMELY, ANCHOR NUTS, BEARING NUTS, BARREL NUTS, CLINCH NUTS, CLIP NUTS, NUTS WITH WELDING FLANGES, INSULATION-COATED NUTS, DOME NUTS, LOCK NUTS, LOCK WASHERS, ANCHOR STUDS, GROMMETS, INSERT FASTENERS FOR SANDWICH STRUCTURES, MOLDED INSERTS, HINGED SCREW CLAMPS, SPRING-LOADED LATCH PINS, HOOKS AND ALIGNMENT PINS