UNC

Nylon Insert Lock Nut, 3/4"-10, Steel, Grade 5, Zinc Plated, 57/64 In Ht, 10

A nice touch is the steel nameplate that adds a premium feel.

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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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