Patent ID: 8182181

Claim:
A method of tying down cargo on a cargo carrier, comprising: (a) providing a fastener, including: (i) a shackle fastener element that includes a wall in a form that is closed in two dimensions, defining an opening, and wherein said wall also defines a pair of opposed apertures; (ii) a pin that can be inserted into said two apertures; (iii) a knob fastener element having head and a neck, said head being sized to be passed through said opening when said pin is withdrawn from said wall, and that is retained when said pin is inserted into said pair of apertures; (b) attaching one of said fastener elements to a tension member and attaching one of said fastener elements, that can be engaged to said fastener element attached to said tension member, to said cargo carrier; and (c) engaging said fastener element on said tension member to said fastener element on said cargo carrier and inserting said pin into said shackle fastener element.