Unlacquered brass safety rosette, round

The round unlacquered brass security rosette is a round anti-pry rosette for the front door made of solid, unlacquered brass. It features a hardened steel core for core pulling protection against claw pullers. It develops a natural patina (1-3 years for a UV-exposed front door). Suitable for authentic 1930s home restoration with SKG3 certification. At Deurbeslag Expert, you will find 4 Intersteel round unlacquered brass SKG3 security rosettes with core pulling protection. For a stable appearance without patina, choose the round titanium PVD brass security rosette (15+ years). Combine with matching unlacquered brass front door hardware and a doorknob for a complete authentic package. Order before 8:00 PM? It will be on your doorstep the next working day.

A round unlacquered brass security rosette is a round anti-pry rosette surrounding the profile cylinder of a front door, made of solid brass without a UV-protective lacquer coating. Provides authentic patina evolution combined with villa-grade security. Function: active anti-pry protection for SKG-compliant security hardware. A hardened steel core or free-rotating collar prevents burglars from prying the cylinder out of the lock with a claw puller or core-pulling pin. SKG3 certification: 5 minutes resistance against burglary. Villa-grade. Mandatory component for SKG3-compliant front door hardware. Core pulling protection: specific anti-pry design against core-pulling attacks (the most common burglar method). Unlacquered finish character: without lacquer, brass develops a natural patina from bright gold to warm brown over 1-3 years with UV exposure (faster on the front door than indoors). For authentic 1930s home restoration. Shape selection: round matches round door handle rosettes and classic designs. In the unlacquered brass Round security rosette collection from Deurbeslag Expert, you will find models, all from Intersteel.

When do you choose an unlacquered brass security rosette?

Specific choice for authentic renovation. Classic 1930s home restoration: for full restoration where a complete unlacquered brass front door package is desired. All elements evolve together with patina. Monumental townhouse: for an authentic historical appearance with a classic 1930s Art Deco statement. For those who desire patina evolution: a stable bright gold appearance is not desired. Patina is part of the visual statement. Not suitable for: modern renovation (choose round titanium PVD brass security rosette for 15+ years of stability); modern new build (choose stainless steel security rosette); architect projects with a modern statement (choose titanium PVD for a stable appearance).

Patina evolution and maintenance

Important consideration for a UV-exposed front door. Faster patina evolution: the front door is typically south- or west-oriented. UV exposure accelerates patina to 1-3 years (versus 2-5 years indoors). Patina character: bright gold → gold-brown → deep warm brown → possibly green-tinted (in case of heavy acid rain). The warm brown tones provide an authentic historical appearance. Irregular patina possible: areas with direct sun exposure form patina faster than sheltered areas. Maintenance for desired stability: polish paste (Brasso or similar) once every 2-3 months. Maintenance for desired patina evolution: use only a damp cloth for dust removal; do not polish. IMPORTANT: avoid ammonia, acetone, and vinegar on unlacquered brass. These can cause irregular discoloration.

Sizes and mounting

Three dimensions determine whether a round security rosette fits. Rosette diameter: Ø50-55 mm for Intersteel versions. Cylinder passage: 17 mm for profile cylinder (Dutch standard). Fastening: M5-M6 through-bolts through the door thickness into the inner security shield. Anti-pry requirement requires through-fastening (SKG standard). Hardened core in rosette: impenetrable with standard burglar tools (4500 HV hardness level). Quantity required: typically 2; one on the outside of the front door (critical for anti-pry) and one on the inside.

Combine with other unlacquered brass front door package

Round unlacquered brass security rosette combines in a complete authentic front door package. security rosette hubs for all colors. brass security rosettes for all brass finishes. Round titanium PVD brass security rosette for a stable alternative without patina. Unlacquered brass front door hardware for matching SKG3 security hardware. Unlacquered brass front door knob for matching exterior knob. SKG cylinders for matching SKG3 cylinder with core pull protection. Nickel, chrome, stainless steel, black for other colors. For matching unlacquered brass elements: unlacquered brass door hardware. Hubs: brass door hardware.

Ordering and advice

Order before 8:00 PM? Then your unlacquered brass security rosette will be on your doormat around the next working day, provided the product is in stock. For non-stock products, we communicate the delivery time in advance. On average 1-2 weeks from the Intersteel factory. For a complete authentic SKG3 front door package: combine the security rosette with matching unlacquered brass front door hardware, an unlacquered brass front door knob , and an SKG3 cylinder. Undecided between unlacquered (patina evolution 1-3 years with UV) or titanium-PVD (stable for 15+ years without patina)? Send a photo of your front door and desired level of authenticity to info@deurbeslag-expert.nl. We will help you put together a matching package.