Comparison : Item # HN02500XXX, Hex Nut, 1/4" Nominal Dia.
Item # HN03125XXX, Hex Nut, 5/16" Nominal Dia.
Item # HN03750XXX, Hex Nut, 3/8" Nominal Dia.
Item # HN04375XXX, Hex Nut, 7/16" Nominal Dia.
Item # HN05000XXX, Hex Nut, 1/2" Nominal Dia.


Use trailing wildcard (*) for broader results.