ASTM 563

1/4"-28 Grade 2 Zinc Plated Finish Low Carbon Steel Round Slotted Castle Nut,

A nice touch is the steel footplate that protects floors from scuffs.

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5/8"-11 Grade 2 Zinc Plated Finish Low Carbon Steel Round Slotted Castle Nut,

What stands out about the steel construction is its weight capacity.

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7/8"-14 Grade 2 Zinc Plated Finish Low Carbon Steel Round Slotted Castle Nut,

What stands out about the steel material is its non-porous nature.

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