Ask the Expert

Question: How much coupling nut thread engagement is required to achieve the strength of the rod?

Answer: Unfortunately there appears to be no documented information on how much rod engagement into a coupling nut is required to achieve the strength of the rod or bolt being used with it. Read More...

Question: What do I do if I poured my anchor bolts too low or too high?

Answer: The answer can be found in AISC Design Guide 1,Section 2.11.3 Read More...

Question: What size anchor bolt sleeve do I use to fit a 1-1/8” diameter anchor bolt?

Answer: This question is often brought to Portland Bolt’s attention by customers wondering how to install an anchor bolt sleeve with a 1-1/8” diameter rod.  Read More...

FAQ: Are torque specifications or values available for lag screws?

Answer: There are no documented torque values for lag bolts or screws. Read More...

Question: Is it acceptable practice to alter a bolt’s length in the field if it is too long?

Answer: Altering a bolt’s length or configuration in the field is acceptable as long as it does not change the length originally specified by the designer or engineer. If a bolt is longer than what was originally needed, the bolt can be cut down in the field.

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