Patent ID: 7896599
Filing Date: 2011-03-01
Classification: F16B,Y10S

Abstract:
1. A composite-metal male fastener comprising: an elongate hollow shell made of metal, said shell element including a proximal extremity, a distal extremity and a longitudinally aligned central bore having a substantially circular cross-section, said proximal extremity including a radially extending flange having a top, one or more sides, a bottom and an opening extending into said bore, said distal extremity's exterior including male threads for threadably receiving the threads of a female fastener; and a core element made of a composite material, said core element filling said shell's central bore, said core element further extending proximally and radially from said bore to encapsulate said flange including covering said flange's top and one or more sides to form a male fastener head for rotation of the male fastener, and wherein said flange is not circular in order to inhibit rotation of said flange within said head.