1)Stainless steel , AISI316 or AISI304, high polished 2)All sizes are available ... .789Dear sir or madam,Our is specialized in producing stainless steel rigging hardwares,including:shackles,nuts,bolts,shackles,hooks and clips ... .CocoTel:0086-0543-2257116Fax:0086-0543-2257566Trade Manager: cn200083869 stainless steel pipe fittings