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Question: How does hot-dip galvanizing differ from electrogalvanizing?

Answer: Hot-dip galvanizing is a process of applying a protective zinc coating by dipping product in bath of molten zinc. Read More...

Question: Can a carriage bolt be supplied to the A325 specification?

Answer: Technically, carriage bolts cannot be manufactured to the A325 specification. Read More...

Question: Is color coding required on F1554 anchor bolts when supplemental requirement S3 is requested?

Answer: S3 is the supplemental specification for a permanent grade identification stamp on the top end of F1554 anchor bolts. Read More...

Question: Is it possible to put threads on rebar?

The answer is yes, however, there are several issues to consider to avoid liability. For this discussion, we will assume a requirement for threaded rebar as follows:

#8 x 48″ long A615 grade 60 rebar with 8″ thread one end.

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Question: How do I determine the proper wrench opening or socket size to tighten a specific size of bolt?

Answer: Socket sizes and wrench openings for tightening nuts and bolts are determined by the dimension across the flats of either the nut or bolt head. According to the Machinery’s Handbook, 26th edition, “Wrenches are marked with the ‘nominal size of wrench’ which is equal to the basic or maximum width across flats of the corresponding nut”.

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