Product Details:

Permits Mounting of Pulls to 1-3/4" (44.5 mm) Thick Aluminum, Wood or Hollow Metal Doors.

Will work with Back to Back Door Pulls.

This CRL Thru-Bolt Mounting Adapter Bolt will allow mounting of standard Door Pulls on
3/8 or 1/2 inch (10 or 12 millimeters) thick glass doors. Two screws per pack.
 
Minimum Order: 1 Package (two screws per pack).