Patent ID: 8672597
Filing Date: 2014-03-18
Classification: F16B

Abstract:
1. A process for forming a fastener secured to a substrate, comprising the steps of: cold heading a barrel shaped fastener creating a flange and a gripping portion including splined teeth, said gripping portion includes at least 6 splined teeth arranged symmetrically around the circumference of said barrel and proximate said flange; boring a hole in said substrate, said bore being slightly larger in diameter than said barrel, said bore being smaller in diameter than the largest diametrical measurement of said gripping portion, said largest diametrical measurement taken from the apex of one of said splined teeth to the apex of a splined tooth diametrically situated or if no splined tooth is located diametrically then to the apex of the adjacent splined tooth; forcing said barrel shaped fastener into said substrate until said flange engages said substrate and said splined teeth engage said substrate; riveting said barrel into engagement with said substrate.