Abstract: A fastener with shaving inhibitor for fastening a material such as a metal sheeting panel to a substrate such as metal or wood. The fastener has a notch angled leftwardly with respect to an axis of the fastener, the notch having a first end and a second end, a leading face and a trailing face, each face having outer edges and a common edge at their intersection. At least one of the leading and trailing faces may be substantially planar but may have other shapes, such as concave. Leftwardly angled notch with faces having outer edges may attract and then cut shavings formed from material being installed, thereby reducing the quantity and/or length of shavings, prolonging the life of the material or the structure to which the material is fastened.

Abstract: An interface adaptor connector for effectively connecting one end of a seismic sway brace or restraint pipe, which is fixedly connected to, for example, a water pipe of a building sprinkler system, to a suitable support anchor which is adapted to be fixedly connected to an overhead ceiling or structural beam member of a building within which a sprinkler system has been installed.

Abstract: A fastener with shaving inhibitor for fastening a material such as a metal sheeting panel to a substrate such as metal or wood. The fastener has a notch angled leftwardly with respect to an axis of the fastener, the notch having a first end and a second end, a leading face and a trailing face, each face having outer edges and a common edge at their intersection. At least one of the leading and trailing faces may be substantially planar but may have other shapes, such as concave. Leftwardly angled notch with faces having outer edges may attract and then cut shavings formed from material being installed, thereby reducing the quantity and/or length of shavings, prolonging the life of the material or the structure to which the material is fastened.

Abstract: An insulation plate has a lower height profile, a smaller thickness dimension, and a smaller transverse extent than those of conventional insulation plates so as to effectively reduce the material costs and weight of each insulation plate. In addition, the insulation plate is provided with an increased number of concentric rib members, as compared to conventional insulation plates, whereby the insulation plate is characterized by enhanced rigidity such that the insulation substrate does not achieve pullover with respect to the insulation plate, and wherein further, the radially innermost rib member structurally cooperates with the centrally apertured recessed portion of the insulation plate in order to provide the same with enhanced strength characteristics in order to resist fastener pull-through.

Abstract: A driver blade for use in a combustion-powered fastener-driving tool includes an elongate tubular body having a combustion end and a driving end, the combustion end being configured for attachment to a piston, and the driving end having a substantially solid cross-section. The tubular body is in fluid communication with a tool combustion chamber.

Abstract: A threaded fastener comprises a first, primary thread lead, and a pair of second, auxiliary thread leads alternatively interposed between successive threads of the first, primary thread lead, except within the vicinity of the tip portion of the fastener so as to define space for accommodating debris generated during the self-tapping of the fastener into a workpiece. The fastener also comprises lobe members formed upon the primary thread lead so as to predeterminedly affect torque insertion and pull-out resistance values.

Abstract: A new and improved threaded fastener comprises a first, primary thread lead, and a pair of second, auxiliary thread leads alternatively interposed between successive threads of the first, primary thread lead. The threaded fastener further comprises a pointed tip portion for initiating driving insertion of the threaded fastener into an underlying workpiece, and that portion of the dual reinforcing lead, which has previously been interposed between the tip portion and the primary thread lead, or between the first and second successive threads of the first primary thread lead, has been removed.

Abstract: A cavitation resistant, low carbon 12% chromium steel alloy utilizing a nominal 1.5% copper addition which imparts strength by a precipitation reaction. The alloy exhibits a higher strength and hardness for a given carbon content and conversely is less susceptible to casting and welding cracks and stress corrosion cracking.

Abstract: A low carbon Martensite structure is obtained in a low chrome-nickel casting steel consisting of less than 0.06 percent C, 4.75 to 5.75 percent Cr, 2.75 to 3.50 percent Ni, 0.45 to 0.65 percent Mo, less than 1.0 percent each of Mn and Si, and less than 0.04 percent of each P and S with the remainder essentially Fe. The resulting material has excellent weldability and handling characteristics without preheat. It is superior in this regard to the present ASTM A217 Gr 56 alloy which it is intended to replace.