Type 1 Flush Button Fix Bracket Connecting 90º Degree Panels QUALITY x100 Product details: Connects panels at 90º with a simple push/pull fit ideal for applications where the emphasis is more on ease of fit and less on strength. Does not require a 15 mm drop down engagement. The choice of button is determined by the type of screw and thickness of panel being used. Material - Nylon fix and glass filled button. Application - For 90º panels Installation - For screw fixing