I use this hardware when assembling handicap ramps. We use 3" or 4" lag bolts instead of a 3/8" bottom bracket to hold the modules together (joining 2x6 wood). Although more expensive than carriage bolts, they are quicker and easier to install (no hole required). ) and they offer excellent durability and weather resistance. They are of the same quality (as far as I can tell) and a lot cheaper than the national brands found in hardware stores.
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