These CRL Large Wall Mount Set Screw Hinges will give you unlimited flexibility in design. They will receive from 3/16" to 5/16" (4.8 to 7.9 mm) tempered glass for that thick glass look, and still offer smooth operation. The maximum recommended door width is 18" (457 mm). Maximum weight should not exceed 20 lbs. (9 kg). The glass is secured with three plastic tipped set screws for no-drill attachment. Two per pack with matching finish wood screws.