Comparison : Item # HHSN02500XXX, Heavy Hex Slotted Nut, 1/4" Nominal Dia.
Item # HHSN03125XXX, Heavy Hex Slotted Nut, 5/16" Nominal Dia.
Item # HHSN03750XXX, Heavy Hex Slotted Nut, 3/8" Nominal Dia.
Item # HHSN04375XXX, Heavy Hex Slotted Nut, 7/16" Nominal Dia.
Item # HHSN05000XXX, Heavy Hex Slotted Nut, 1/2" Nominal Dia.


Use trailing wildcard (*) for broader results.