Apparatus for installing fasteners and explosive loads for use therewith

A system comprising a

• bracket for attachment to an overhead substrate to carry a suspending wire or rod, said bracket being formed from metal plate or strap stock having a bend connecting a first section of the stock with a second section of the stock, the first section of stock having an upper surface and a lower surface and a through-aperture extending between the upper surface and lower surface, and a protuberance on the lower surface that protrudes away from the lower surface and has a base and an apex, with the through-aperture extending to an opening at the apex on the lower surface of the first section of stock,
• a nail having a cylindrical shaft, a longitudinal axis, a pointed distal end and a proximal nail head, the cylindrical shaft positioned slidably in the through-aperture of the apex with the pointed distal end protruding in the range of about 0.1 to about 0.5 cm above the upper surface of the first section of stock opposite to the protuberance,
• a plastic cap having a distal end and a proximal end, the distal end surrounding the nail head, the proximal end containing a nitrocellulose load, said plastic cap being cylindrical in shape and having a longitudinal axis positioned coaxially with the longitudinal axis of the nail shaft, said plastic cap having an outside diameter smaller than the outside diameter of the protuberance at the base,
• wherein the nail has a length between the distal end and the proximal end that is in the range of 2 to 5 cm and the plastic cap and/or nitrocellulose load is color-coded dependent on the length of the nail, and
• a muzzle assembly having a distal annular endface and a proximal annular endface, a color coded washer, wherein the color code of the washer is based on the length of the nail, an inner sleeve, and a receiver, the inner sleeve having a distal annular endface and a proximal end, the muzzle assembly defining a cylindrical throughbore and having a distal end and a proximal end, the distal end of the muzzle assembly receiving the proximal end of the plastic cap, the proximal end of the muzzle assembly being threaded to the inner sleeve, the color coded washer being retained between annular endfaces on the muzzle assembly and the inner sleeve, and the inner sleeve being slidably carried by the receiver.