Comparison : Item # Z11F0005, Nylon Insert Lock Nuts, Grade 2, National Fine, Zinc Plated Steel
Item # Z11F0010, Nylon Insert Lock Nuts, Grade 2, National Fine, Zinc Plated Steel
Item # Z11F0015, Nylon Insert Lock Nuts, Grade 2, National Fine, Zinc Plated Steel
Item # Z11F0020, Nylon Insert Lock Nuts, Grade 2, National Fine, Zinc Plated Steel
Item # Z11F0025, Nylon Insert Lock Nuts, Grade 2, National Fine, Zinc Plated Steel