... other materials 2.ISO certificate for the shackle 3.Competitive price and quality The D shackle :1.Model :G210/S2102.Standard :US TYPE3 ... alloy pins6.Size(inch):1/4,5/16,3/8,7/16,1/2,5/8,3/4,7/8,1,1.1/8 ... ,1.1/4,1.3/8,1 ... to contact with us, we also welcome customer-designed product. D shackle