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Question: What is the difference between the two types of anchor bolt sleeves that Portland Bolt stocks?

Answer: Portland Bolt inventories two different lines of anchor bolt sleeves, Wilson and Contec.

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Question: What is the maximum safe working temperature for hot-dip galvanized fasteners?

Answer: The answer to this question can be found in the appendix of the ASTM A194 specification, which deals with nuts for high temperature or high pressure service. Specifically, section X2.1 – Coatings and Application Limits.

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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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