C.R. LAURENCE BGC900RB CRL Oil Rubbed Bronze Beveled Style 90 Degree Glass-to-Glass Clamp A Nice Option to More Traditional U-Channel, in that the Clamps Help the Appearance of an &#39;All-Glass&#39; Look For 3/8&quot; to 1/2&quot; (10 to 12 mm) Glass Glass Fabrication Required to Accommodate Clamps Solid Brass Used to Secure Fixed Panels of Glass for Frameless Shower Enclosures