Surface Vertical Rods Adams Rite exit devices with surface vertical rods for two-point locking are durable and provide a high level of security. Available with top and bottom rod, or top rod only; for single or double doors in aluminum, hollow metal or wood applications. 8100 Series (Life-Safety) | 3100 Series (Fire-Rated) Surface Vertical Rod Exit DevicesSurface vertical rods for two-point locking on hollow met… 8200 Series (Life-Safety) Narrow Stile Surface Vertical Rod Exit DeviceSurface vertical rods for two-point locking on aluminum doors.