Attributes . Variety of Fastenings in Wood, Concrete and Metal, Iron Mongery, Hardware Fixtures and a Variety of Repair Application, Assembling Ducts, Air Conditioning and Central Heating Systems, Fastening Extruded Metal Sheet to Metal Frames, Fixing Laps of Roofing or Cladding Sheets and Flashings, Fastening Wooden Frames Together, Drilling, Assembling and Installing Metal Switchboxes, Control Boxes . Names