The Shackles (both body and pin) WinnerLifting provides are made of high strength alloy steel through advanced production line and intermediate frequency furnace heat treatment.They have the advantage of high-intensity,light weight,nice appearance as well as good toughness.
And yet,all these US Type Shackles,including there screw pins and bodys meet the requirements of federal specification RR-C271D type IVB,grade A,class 2.
In a word,you can find quite good shackles here!Contact us for more!