1.Material: Stainless steel, Carbon steel, Alloy steel 2.Size: kinds of 3.Usage: Marine hardware, Building, Electric power Stainless steel screw rod 1.Material: Stainless steel, Carbon steel, Alloy ... :Rigging categories: shackles(JIS,DIN,US,EN, trawling shackle, deformed shackle, free forging, die forging, bow style, D style), turnbuckle, wire rope clip ...