5/16 x 2-1/2'' Hex Lag Screws Hot Dipped Galvanized Steel (Quantity: 550) - 5/16-9 x 2-1/2'' by Newport Fasteners at The Herald Network. MPN: 327948-550. Hurry! Limited time offer. Offer valid only while supplies last. These extremely sturdy fasteners are usually used to connect heavy lumber or other heavy materials that are bearing an intense load. These screws differ from normal wood, self-drilling or sheet metal screws. Compared to most ordinary screws, lag screws are massive in size. Most lag screws are at least one inch long and 1/4-inch thick. For example, wood screws are used when connecting an application with only wood materials. These wood screws boast coarse threading, but that threading does not
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