AS B193-1963
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Hot-dip galvanized coating on fasteners (BSW and UNC Threads)
30-06-2017
01-01-1963
Applies to hot-dip galvanized coating on steel bolts, screws, nuts and other fasteners having BSW or UNC threads, in the nominal size range 1/4 inch to 1 1/2 inch diameter inclusive. It governs the purity of the galvanizing bath, the appearance of the coating under visual examination, the weight of the coating, the uniformity and adhesion of the coating, the fit of the threads on the finished articles, and the test methods to be adopted. It does not deal with the dimensions or physical properties of fasteners, depending for these on reference to relevant specifications.
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