Product Details:

For 3/8" or 1/2" (10 or 12 mm) Glass
This CRL Four-Way Patch Connector is used for
joining a four lite glass junction. It should be pre-determined
that the junction has enough structural strength, and does not
require a support fin.
Color: Aluminum
Minimum Order: 1 Each
Additional Product Information:
GLASS FABRICATION REQUIRED: Four 3/4 inch (19 millimeter) Diameter
Holes.