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When selecting carriage bolts for a project, it is important to consider the size and length of the bolt. The size refers to the diameter of the bolt shaft, while the length refers to how far the bolt extends into the material. For example, a 5%16% 20 x 1 2 carriage bolt has a shaft diameter of 5/16 inches and a length of 1-1/2 inches. It is important to choose a bolt that is the appropriate size and length for the job to ensure a secure fit.

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HEBEI YUETONG FASTENERS m16 flat washer