Rocky Mountain Rectangular Dead Bolt 2 1/2" x 3" Door Thickness:1-1/2" when exposed to fire latchbolt

when exposed to fire latchbolt releases keeping the door closed and regulated

Without  cylinder

Adams Rite P8700 Series Pullman Rim Exit Devices Clear Anondized Cylinder Dogging Dual Switch 30in Matching End Caps features include:

Part No: 167048

If you have an

Rocky Mountain Rectangular Dead Bolt 2 1/2" x 3" Door Thickness:1-1/2" when exposed to fire latchboltPart Number : DB507 Metal options: B (Silicon Bronze) or W (White Bronze). Patina options: L (Light), M (Medium), D (Dark), R (Rust), BB (Brushed), DL (Dark Lustre). No high polish or custom finishes. Backsets: 238 (2 3 8") or 234 (2 3 4"). Door thickness: 1 3 8", 1 3 4", 2", 2 1 4". Use with compatible RMH Express escutcheons; verify handing and door prep. Finish Texture Shown in Silicon Bronze Medium (BM).