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Yuntianshi butt fastener

The material flanging thickness of Yunnan butt fastener is greater than that of hollow rivet, so the tensile strength is increased, and the anti-torque rigidity is greatly improved. Compared with the traditional butt fastener, it is safer and more reliable, and the structural strength of the butt fastener is much better than that of the traditional building fastener. The big end is connected with the upper fastener with notch and thrust surface, and the two sub-fasteners are riveted and rotated at any angle. Make fasteners to reduce the number of parts, butt fasteners have substantial characteristics and significant progress.