Reinforced Steel Escutcheon Collars: Denying Clamping Purchase on Exposed Cylinders
Engineering Overview: Technical overview of hardened steel beveled escutcheon collars and security roses designed to deflect mole grips and pipe wrenches.
Technical & Engineering Specifications
| Geometry | 45-Degree Anti-Grip Beveled Chamfer |
|---|---|
| Material | Case-Hardened Carbon Steel (60 HRC) |
| Mounting | Through-Door M6 High-Tensile Steel Bolts |
| Standard | PAS 24 / BS 3621 Security Escutcheons |
| Hardware Type | Armored Security Rose / Escutcheon Collar |
Denying External Tool Purchase
Burglars use mole grips or pipe wrenches to clamp onto cylinders that protrude beyond the door face.
Beveled Armored Collar Design
- Case-Hardened Steel (60 HRC): Outer security rose is manufactured from hardened steel with a 45° beveled chamfer.
- Tool Cam-Off: Clamping jaws slip and cam off the angled hardened steel surface, completely denying purchase.
- Bolt-Through Fastening: Secured via twin M6 high-tensile steel bolts from the interior.
Frequently Asked Engineering & Selection Questions
Q1: How does an armored beveled collar stop lock snapping?
Its 45-degree hardened steel angle causes clamping tools (like pipe wrenches) to slip off immediately without gripping the cylinder.