Patent ID: 6632056
Filing Date: 2003-10-14
Classification: E04F,E06B,F16B,Y10T

Abstract:
A fastening element for doubleglass panels, comprising a threaded bolt having a forward end and provided with an expansion cone at said forward end; an annular expansion element pushed onto said expansion cone for expansion in a hole drilled in a rear glass panel and provided with an undercut in a region of a bottom of the drilled hole; a cap placed on said expansion element and resting against an end face of said threaded bolt; and a spacing sleeve arrangedon a shank of said threaded bolt so as to rest against the rear glass panel and to pass through a front glass panel, said spacing sleeve having a portion engageable in the hole drilled in the rear glass panel and providing an abutment for said expansion element, wherein said cap and said spacing sleeve are composed of plastic materials such that a plastic material of said cap is softer than a plastic material of said spacing sleeve.