What does 0 MB mean?

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Old 08-21-07, 07:17 PM
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What does 0 MB mean?

I am an amateur building a pole barn. My plan shows a detail of the truss to post connection. It has the notation 3/4" 0 [th number 0] MB. I am assuming it is calling for a 3/4" thick piece of material and I assume the "B" stands for board. But, I don't know what the "M" stands for so I'm not sure what goes there. I know what OSB is. Is this another name for that? Or, is it something else? Thanks in advance for any help.
 
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Old 08-21-07, 08:12 PM
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I think it's a 3/4" thick bolt, used to bolt the trusses though the posts. MB = machine bolt. It should also specify a length, I would assume.

Not sure about the zero. Perhaps that indicates no markings on the head- a Grade 2 bolt.
 
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Old 08-21-07, 09:59 PM
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Thank you, X

As I look at the plan that makes sense.
 
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