1 2 wafer head self drilling screws

The primary structure of a wedge-type anchor consists of a threaded rod, a nut, a washer, and the wedge itself. The threaded rod, often made from durable materials like steel or stainless steel, is inserted into a pre-drilled hole. As the nut is tightened, the wedge is forced against the inner wall of the hole, causing the anchor to expand. This expansion generates a powerful frictional force that locks the anchor in place, providing exceptional holding power.

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The story of butterfly anchors begins with their unique design, which is inspired by the graceful movements of butterflies. Instead of the traditional J-shaped configuration, butterfly anchors have two curved arms that deploy symmetrically, creating a wide footprint on the seabed. This design not only provides superior holding power but also minimizes the risk of dragging or swinging, making them ideal for a variety of sea conditions.

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