HYBRID COMPOSITE-METAL BREAKAWAY NUT FASTENER

摘要

A breakaway nut fastener is provided having a hybrid construction of plastic and metal. The breakaway nut fastener includes a head portion and a nut portion connected by a thin walled section. The head portion is made of plastic and has a shape so as to mate to a tool. The nut portion has an exterior shell having a cavity for receiving a nut insert. The nut portion's exterior shell is made of plastic while the nut insert is made of metal. The breakaway nut fastener's thin walled section is also made of plastic joining the breakaway nut fastener's head portion and the nut portion's exterior shell. The thin walled section is made of plastic, and preferably the head portion, nut portion and thin walled section are constructed as one part forming a single component of plastic.

主权项

1. A hybrid composite-metal breakaway nut fastener comprising:
a head portion having a proximal end and a distal end defining a central axis, said head portion made of plastic and having a shape so as to mate to a tool so as to be rotated; a nut portion including an exterior shell and a nut insert, said exterior shell made of plastic and having an annular shape so as to include a proximal end and a distal inlet coaxial to said central axis, said nut insert made of metal, having a circumferential exterior surface, proximal and distal ends, and a female threaded bore, said nut insert being concentrically affixed within said exterior shell so as to be able to receive a male threaded fastener through said exterior shell's distal inlet into said nut insert's female threaded bore; and a thin walled section connecting and affixing said head portion's distal end to said exterior shell's proximal end, said thin walled section made of plastic.