The burglar resistant effect of external doors, such as front doors or basement doors, can be increased significantly by fitting them with security escutcheons, which protect the lock. Security escutcheons are designed to make mechanical manipulation (lock drilling or forced lock-snapping) of the profile cylinder considerably more difficult and thus burglary can be prevented.
HEWI security escutcheons are conically shaped so that they cannot be forcefully twisted off. The bottom section is additionally hardened to increase the stability of the rose. From April 2017, HEWI security escutcheons are optionally available made of polyamide-steel composite or stainless steel, they are certified according to DIN 18 257 Class 1.