Parfait Cylinder Deadlock
• Single cylinder design
• Solid bolt extends 1 inch (25mm) or more for strong resistance against forced entry
• Durable construction with brass or steel components for long-lasting performance
• Easy to install on standard wooden and metal doors with common prep
• High-security key cylinder provides reliable pick and drill resistance
• Smooth operation with a reliable internal mechanism
• Compatible with standard door thicknesses and backset measurements
• A fundamental and effective security upgrade for any entry door
• Provides peace of mind for residential and light commercial properties
• Often designed for easy re-keying to match existing house keys

About Parfait Cylinder Deadlock

Secure your home or office with the dependable Parfait Cylinder Deadlock, a classic single cylinder deadbolt designed for robust and straightforward security. The Parfait Cylinder Deadlock features a high-security key cylinder on the exterior side and a thumb-turn on the interior, allowing for easy egress while preventing unauthorized keyed entry from the outside. Engineered with a solid brass or steel bolt that extends deep into the door frame—typically 1 inch (25mm) or more—this deadbolt provides exceptional resistance against forced entry.

The Parfait Cylinder Deadlock is built for durability, with a precision-engineered mechanism that ensures smooth operation and long-term reliability. It is designed for easy installation on most standard wooden and metal doors, fitting common prep sizes. With its simple yet effective design, the Parfait Cylinder Deadlock is a fundamental and trusted component of door security, providing peace of mind for residential and light commercial applications.

What is a Single Cylinder Deadbolt?

A single cylinder deadbolt, like the Parfait Cylinder Deadlock, has a keyed cylinder on one side (usually the outside) and a thumb-turn (a twist knob) on the other side (the inside). This design allows occupants to unlock and open the door quickly from the inside without a key, which is crucial for safety during an emergency exit. The Parfait Cylinder Deadlock is the most common type of deadbolt for residential front and back doors.

How Does It Enhance Door Security Compared to a Latch Lock?

The Parfait Cylinder Deadlock provides significantly more security than a standard spring-latch door knob lock. A deadbolt has a solid metal bolt that is thrown horizontally into the door frame strike plate, unlike a latch which can often be forced back with a credit card or tool. The Parfait Cylinder Deadlock’s bolt is also longer and thicker, making it much harder to kick in or pry apart from the frame. It is a primary locking device, whereas knob latches are considered secondary.

What is the Installation Process?

Installing the Parfait Cylinder Deadlock involves a few key steps. You will need to drill two holes in the door: a large hole through the edge for the bolt assembly and a smaller hole through the face for the cylinder and thumb-turn. A matching hole is also drilled into the door frame for the bolt. The Parfait Cylinder Deadlock comes with a template to guide this process. It is compatible with standard door preparations, but measuring your existing deadbolt or door prep is essential before purchasing to ensure a correct fit.

Is it Suitable for Both Wooden and Metal Doors?

Yes, the Parfait Cylinder Deadlock is designed to be installed on both wooden and metal doors. For metal doors, particularly security or steel doors, you may need specific drill bits (like step bits or hole saws) to create clean holes. The installation principle remains the same. The robust construction of the Parfait Cylinder Deadlock makes it an effective security upgrade for any solid-core door material.

Can the Key Cylinder Be Re-Keyed to Match My Existing Keys?
In many cases, yes. The Parfait Cylinder Deadlock often uses a standard keyway. If it uses a common profile (like a KW1 or SC1 key in certain regions), a locksmith can typically re-key the cylinder to match the keys of your other door locks. This allows you to maintain a single key for your home, a feature known as “keyed alike.” It is advisable to check the cylinder type or consult with a locksmith regarding the re-keying potential of your specific Parfait Cylinder Deadlock model.