Abstract: A grooved washer is used on a screw carrier tape and has a ring body. The ring body has an outer side face, a groove, two groove walls, and a perforation. The groove is annularly formed in the outer side face. The two groove walls are oppositely defined in the groove. The perforation is formed through a center of the ring body and through the top surface of the ring body and the bottom surface of the ring body. Moreover, the grooved washer has a metal gasket which is attached to the top surface of the ring body. With the groove, the grooved washer limits the carrier tape to be stuck on the screw carrier tape so that screws are stably located in the positioning apertures without falling from the screw carrier tape and being scattered, so as to improve the convenience in use.

Abstract: A grooved washer is used on a screw carrier tape and has a ring body. The ring body has an outer side face, a groove, two groove walls, and a perforation. The groove is annularly formed in the outer side face. The two groove walls are oppositely defined in the groove. The perforation is formed through a center of the ring body and through the top surface of the ring body and the bottom surface of the ring body. Moreover, the grooved washer has a metal gasket which is attached to the top surface of the ring body. With the groove, the grooved washer limits the carrier tape to be stuck on the screw carrier tape so that screws are stably located in the positioning apertures without falling from the screw carrier tape and being scattered, so as to improve the convenience in use.

Abstract: A screw band has a body and multiple positioning members disposed on the body. The body has two paper layers and an adhesive layer. Each one of the two paper layers has a paper base and a waterproof heat-insulation film. The waterproof heat-insulation film is mounted on an outer surface of the paper base. The adhesive layer is disposed between and is connected with the two paper layers. The adhesive layer is connected to inner surfaces of the paper bases of the two paper layers. The waterproof heat-insulation films of the two paper layers are respectively located at two outer surfaces of the body. With the waterproof heat-insulation films, the screw band has waterproof and heat-insulation effects. Screws or screw assemblies are easy to be applied with coating and baking processes automatically with the screw band.