National Hardware N177-212 3240BC Clevis Grab Hook in Blue Authorized Replacement for Stanley Hardware Stock #N177-212 Designed for making quick connections with chain in industrial and construction applications Meets Grade 43 hook specifications Removable clevis is for easier rigging For use with chain of an equal or lower grade; Not designed for over-head lifting Designed for making quick connections with chain in industrial and construction applications Meets Grade 43 hook specifications