Comparison : Item # HHFN11250XXX, Heavy Hex Flat Nut, 1-1/8" Nominal Dia.
Item # HHFN12500XXX, Heavy Hex Flat Nut, 1-1/4" Nominal Dia.
Item # HHFN13750XXX, Heavy Hex Flat Nut, 1-3/8" Nominal Dia.
Item # HHFN15000XXX, Heavy Hex Flat Nut, 1-1/2" Nominal Dia.
Item # HHFN17500XXX, Heavy Hex Flat Nut, 1-3/4" Nominal Dia.


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