Patent ID: 6033170
Filing Date: 2000-03-07
Classification: F16B

Abstract:
An improved screw head nail comprising:a nail having an upper end defining a nail head, a lower end defining a nail point, and a nail shank disposed therebetween, said nail shank having a centrally disposed internally threaded cylindrical bore extending from said nail head towards said nail point, said nail head having a generally frustoconical opening formed therethrough which is aligned with and opens onto said cylindrical bore and which, upon flattening of said nail head, protects the cylindrical bore from substantial damage and exposes said cylindrical bore for allowing full threaded receipt of a cylindrical machine screw therein, wherein said nail head is generally cylindrical and has an enlarged diameter relative to said nail shank and said frustoconical opening is recessed within said nail head and centrally aligned with said cylindrical bore; anda cylindrical machine screw threadably receivable in said internally threaded cylindrical bore.