1 we can supply kinds of chain shackles . 2 offer related certificate : ABS,CCS,DNV,GL etc. ... you the anchor chain, anchor shackles,mooring chain, chain shackles,stud link chain, open link chain, studless link chain, high tensile link chain and the chain's diameter ... -1/21-1/83-3/164.74Image US. type screw pin bow shackle