expansion anchors

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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3. Strength The spiral thread design and high-quality materials used in these screws provide excellent holding power and stability. This makes them suitable for use in structural applications where strength and durability are critical This makes them suitable for use in structural applications where strength and durability are critical This makes them suitable for use in structural applications where strength and durability are critical This makes them suitable for use in structural applications where strength and durability are criticalblack hex head self tapping screws.

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