roof self drilling screw

An M6% resin anchor is a type of fastener designed to be embedded into a substrate, primarily concrete, using a high-strength resin adhesive. The M6 designation refers to the metric thread size; this means that the anchor has a nominal diameter of 6 millimeters. The % indicates that the resin is formulated to perform effectively under various conditions, enabling a secure bond regardless of the environment. This type of anchor is ideal for applications requiring substantial load-bearing capacity while maintaining a non-corrosive and durable bond.


...

At its core, the structure of a bolt consists of a few key components the head, the shank, and the threads. The head is the larger, often hexagonal or square part at one end of the bolt, designed to provide a surface for the application of torque when tightening or loosening the bolt with a wrench. The shank is the long cylindrical part that spans between the head and the threads, and it determines the overall length of the bolt. The threads are helical ridges that spiral around the shank, allowing the bolt to engage with a nut or a threaded hole, enabling a strong clamping force between joined parts.


...