What do I use the coach bolts for in the bench construction and how many are needed (what length)? Is a coach bolt the same as a carriage bolt?
Md Ariful Islam
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Dr. Md Rushad Rahman
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From reading the directions carefully, the carriage bolts (yes, the same as a "coach" bolt) are used to bolt the long top braces to the 4x4 legs (1 at each corner), and to bolt the workbench surface to the top supports. If you slow down and do the math, 3/8x6 in bolts should work just fine, and per the plans, you should need 8 of them.
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