bm fasteners, German bm models, bm prices

bm fasteners feature one or more cutting slots at the end of the thread, allowing them to cut matching internal threads in a manner similar to a tap when screwed into a pre-drilled hole, utilizing the screw tail and threads. They can be used on thick plates and materials that are hard, brittle, or difficult to form. Self-tapping screws are screws with a drill bit tip; using specialized power tools, drilling, tapping, fixing, and locking are completed in one operation. Self-tapping screws are mainly used for connections such as joining color steel sheets to each other and fixing them to purlins. These self-tapping screws are often exposed outdoors and possess strong