plastic expanding nut

The 1 2 indicates the dimensions of the anchor plate. It could mean a 1 by 2-inch rectangular plate or a 1.2-inch thick plate, depending on the context2-inch thick plate, depending on the context2-inch thick plate, depending on the context2-inch thick plate, depending on the context5 8 x 4 1 2 strong bolt 2 anchor. Regardless, the plate's purpose is to distribute the load from the bolts evenly onto the substrate, preventing localized stress and potential damage.

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Self-drilling screws, as the name implies, eliminate the need for a separate drilling step, as they have a cutting tip designed to pierce through material without requiring a pilot hole. This not only saves time but also reduces the risk of material damage that can occur with traditional drilling methods. The 1 1 4 self-drilling screws refer to a specific size, which typically signifies a 1/4-inch diameter and a 4-thread pitch. The numbers '1' and '20' often represent the diameter in imperial measurements, while '4' indicates the number of threads per inch.

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