Tanner offers a wide variety of fasteners commonly used in the curtain wall industry. These specialty curtain wall fasteners include thread-cutting screws, self-tapping screws & machine screws which are available in a number of different screw points.
A thread forming screw with spaced threads and gimlet point, combining the locating point of Type A with thread size and pitch of Type B. Normal limitations of type B apply. They are used in thin metal, resinous plywood, and various composite boards. Type AB screws offer a wider range of applications over Type A screws.
A thread forming screw with spaced threads and a blunt point with incomplete entering threads for use in heavier metal .050 to .200 thick. Larger root diameter with finer thread pitch for light and heavy sheet metal non - ferrous castings, plastics, impregnated plywood, combinations of materials, and other materials.
A thread cutting screw with machine screw thread with a blunt tapered point, having multi-cutting edges and chip removal cavities. For heavy gauge sheet metal, aluminum, zinc and lead die castings,cast iron, brass and plastic.
