|Manufacturer||Von Duprin Exit Devices|
The Von Duprin 88 and 55 Wedge Tite Screw 090081 is used on the 55 and 88 panic hardware. This screw applies pressure to the wedge which then expands the wedge ring to key the Von Duprin 88 and 55's crossbars tite. The screw is a 5/16-18 x 5/8 hollow set point.
Von Duprin Part # 090081