The clamps are not designed to replace headers or support bars. Clamps are secured in place by screws on the back. 

Specifications:
• Material: Solid Brass
• No holes required on Glass

Adjustable from 90° to 180°

Glass Requirements:
• 3/8” (10mm) Tempered Glass
• 3/8” (10.38mm) Laminated Glass
• 1/2” (12mm) Tempered Glass

Technical Data Sheet: