Comparison : Item # HHJN02500XXX, Heavy Hex Jam Nut, 1/4" Nominal Dia.
Item # HHJN03125XXX, Heavy Hex Jam Nut, 5/16" Nominal Dia.
Item # HHJN03750XXX, Heavy Hex Jam Nut, 3/8" Nominal Dia.
Item # HHJN04375XXX, Heavy Hex Jam Nut, 7/16" Nominal Dia.
Item # HHJN05000XXX, Heavy Hex Jam Nut, 1/2" Nominal Dia.


Use trailing wildcard (*) for broader results.