Comparison : Item # CPLN-0125-13-0081-Z, 5/8-11 x 1/2-13 x 1-1/4" Long x 13/16" Width Reducing Hex Coupling Nut, A563 Grade A Zinc, 20/pk
Item # CPLN-0100-20-0050-Z, 3/8-16 x 1/4-20 x 1" Long x 1/2" Width Reducing Hex Coupling Nut, A563 Grade A Zinc, 50/pk
Item # CPLN-0150-11-0100-Z, 3/4-10 x 5/8-11 x 1-1/2" Long x 1" Width Reducing Hex Coupling Nut, A563 Grade A Zinc, 10/pk
Item # CPLN-0300-7-0163-Z, 1 1/4-7 x 3" Long x 1-5/8" Width Hex Coupling Nut, A563 Grade A Zinc, 5/pk
Item # CPLN-0300-7-0150-Z, 1-1/8-7 x 3" Long x 1-1/2" Width Hex Coupling Nut, A563 Grade A Zinc, 10/pk