Scandinavian Internal Cylinder Modules with Emergency Thumbturn Knobs
Engineering Overview: Technical guide on Scandinavian internal oval lock modules (SS 3522) featuring solid brass thumbturn knobs for residential entrance doors.
Technical & Engineering Specifications
| Material | Solid Extruded H59 Brass |
|---|---|
| Mounting | Twin M5 Interior Through-Bolts |
| Standard | SS 3522 Class 3 / EN 1303 |
| Application | Nordic Timber & Aluminum Entrance Doors |
Nordic Modular Architecture
Scandinavian locksets utilize separate external keyed cylinders and internal thumbturn modules.
Interior Module Mechanics
- Heavy-Duty Brass Turn: Solid extruded H59 brass knob coupled directly to the internal deadbolt follower.
- Through-Bolted Security: Mounted via twin M5 high-tensile steel through-bolts fastened from the interior door face.
Frequently Asked Engineering & Selection Questions
Q1: What is the primary application of this cylinder?
Technical guide on Scandinavian internal oval lock modules (SS 3522) featuring solid brass thumbturn knobs for residential entrance doors.