VON-090074, NL DRIVE SCREW 10/PK SOLD PACK OF 10EA

• 5/16" long by 3/16" diameter Used on the Von Duprin 22, 98/99 Exit Devices to control the rotation of the key cylinder cam. This small set screw, screws into the back of the chassis assembly next to the receptor for the Rim Key Cylinder. Note: When the NL drive screw is left in back of device, the outside cylinder will function only as a Night Latch. The Night Latch function means the door can only be opened, but not dogged open with the key cylinder.