Deadlatch vs Deadbolt: What’s the Difference

When it comes to securing a door, most people focus on strength and reliability—but often overlook the specific type of lock that best suits their needs. One common point of confusion is the difference between a deadlatch and a deadbolt. Although both serve the essential purpose of keeping doors secure, they differ in design, functionality, and appropriate usage. This article will clearly explain the differences.

What Is a Deadlatch?

A deadlatch is a spring-loaded locking mechanism built into door handles. It consists of three main components: the latch bolt, keyhole, and spring-loaded mechanism.

The latch bolt is the beveled part that extends into the door frame.

The keyhole allows key access from the outside or both sides.

The spring-loaded mechanism is what makes deadlatches automatic. It automatically engages when the door closes.

The entire system works as one integrated unit. Most residential and commercial doors use this type of entrance door lock as it provides basic security while maintaining ease of use.

The working mechanism of a deadlatch is straightforward as it operates automatically in most cases. Here’s how a deadlatch works:

• Self-Locking Feature: Once you close the door, the mechanism takes care of the locking process—it automatically locks the deadlatch. A spring pushes the latch bolt into the frame without you doing anything.
• Key-Controlled Entry: The door knob on the outside cannot unlock the deadlatch. Only a key can retract the latch bolt. So if you shut the door without a key, you risk locking yourself out.
• Part of the Door Handle: Most of the time, deadlatches are built into the door handle setup, so it all looks clean and works as one piece.

What Is a Deadbolt?

A deadbolt is a separate locking mechanism independent of door handles. It consists of several key components: a solid bolt, keyhole, and thumb turn (if applicable).

The solid bolt is typically one inch long and made of hardened steel.

The keyhole provides external access control.

The thumb turn allows interior operation without a key.

This lock type requires separate installation from door handles. Deadbolts are typically recommended for main entrances. It’s because they offer higher protection than deadlatches.

The working mechanism of a deadbolt is also straightforward. It requires manual operation for both locking and unlocking. Here’s how a deadbolt works:

• Must Be Manually Locked or Unlocked: Unlike deadlatches, deadbolts don’t engage automatically. You must turn the key or thumb turn to lock/unlock the door.
• Heavy-Duty Bolt Action: The deadbolt reaches at least an inch into the frame, giving your door serious protection against forced entry. The deep penetration provides superior security compared to spring latches.

Deadlatch vs Deadbolt: The Comparison

Both deadlatches and deadbolts serve security purposes, but their mechanisms, security levels, and ideal applications vary considerably. Understanding the differences between deadlatch and deadbolt helps you choose the right lock type.

The following deadlatch vs deadbolt table compares the key characteristics:

 

How to Choose Between Deadlatches and Deadbolts

Choose deadbolts for exterior doors like front doors and back doors. These areas require maximum security protection and deadbolts provide superior resistance against forced entry attempts. Additionally, insurance companies often require deadbolts on exterior doors. They are especially effective against kick-ins and prying, reducing the risk of break-ins compared to deadlatches.

Choose deadlatches for interior doors like office doors and apartment entrances. These locations need convenience more than maximum security. Deadlatches automatically lock when the door closes behind you. This means you won’t accidentally leave doors unlocked in busy office environments.

Use Smart Deadbolts for Enhanced Security

People often forget to lock deadbolts, especially when in a hurry. This creates security vulnerabilities in homes and offices. That’s why using smart deadbolts proves invaluable for modern security needs. At DESLOC, we provide a wide range of smart deadbolt locks. Our C110 Smart Lock is popular thanks to its many advanced features. Here are the key features and advantages that make it a top choice:

• Auto-Lock Feature: The C110 smart lock automatically locks after a preset time. It hence eliminates the worry of forgetting to manually lock the door.
• LockVue Smart Display: The built-in display screen allows full control without needing an internet connection. You can manage settings, set passcodes, and monitor alerts directly on the lock.
• 3-in-1 Keyless Entry: Three unlocking options include fingerprint, passcode, or physical key backup. FlashPrint algorithm identifies fingerprints in under 0.3 seconds.
• 50 Fingerprint Storage: The C110 Smart Lock stores up to 50 different fingerprints for multiple users. This is perfect for families or small offices with several authorized users.
• BHMA Grade 3 Certified: The smart lock meets industry standards for durability and security performance. It’s engineered with a robust lock cylinder and IP54-rated exterior protection.
• 12-Month Battery Life: The PowerMax system provides up to one full year of operation. The lock’s built-in low-battery indicator and Type-C emergency power port prevent lockouts.
• Anti-Peep Keypad: The lock protects against unauthorized access through code observation. Our FingerShield technology guards biometric data against cloning attempts.
• Quick DIY Installation: You can install this smart lock in minutes with just a screwdriver required. Its automatic swing direction detection and adhesive-assisted interior plate ensure easy setup.

Conclusion

Deadlatch and deadbolt serve different security purposes in modern buildings. Deadlatches provide automatic locking convenience for interior applications. Deadbolts offer superior security strength for exterior doors and high-risk areas. Smart deadbolts like our DESLOC C110 combine the best of both worlds. They provide an even higher level of security with enhanced convenience features. At DESLOC, we stand behind every lock we make with comprehensive warranties and lifetime support. Our innovative products help secure millions of homes and offices worldwide. Browse our smart locks and get one today.