PDQ Blog

What Are Mechanical Door Locks?

Written by PDQ Manufacturing | Sep 1, 2024 11:00:00 AM

From the simple wooden mechanisms of ancient Egypt to the intricate iron locks of medieval Europe, mechanical door hardware has continuously advanced in both design and function. These innovations laid the foundation for the robust mechanical locks we rely on today, which are essential in safeguarding entryways.

When it comes to securing a building, the type of lock you choose plays a critical role in both security and functionality. The most common types of mechanical locks used in commercial settings are Cylindrical, Mortise, Tubular, Interconnected, Deadbolts, and Padlocks. Each of these lock types has its unique design, benefits, and common applications.

Cylindrical Locks

A cylindrical lock is a type of mechanical lock that is widely used in commercial and residential settings due to its ease of installation and reliable performance. Typically graded according to the ANSI/BHMA standards, cylindrical locks are categorized into Grade 1, 2, and 3, with Grade 1 offering the highest level of security and durability.

Pros and Cons of Cylindrical Locks

Pros:

  • Ease of Installation
  • Versatility

Cons:

  • Security Limitations
  • Wear and Tear

Key Features and Common Applications of Cylindrical Locks

Cylindrical locks are characterized by their cylindrical shape, which houses the lock mechanism. They typically feature a latch bolt that extends into the doorframe, a key-operated locking mechanism, and a lever on either side of the door. Cylindrical locks are ideal for offices, retail, schools, and healthcare facilities. Their ease of installation also makes them a good choice for retrofitting.

Mortise Locks

A mortise lock is a high-security locking mechanism installed within a pocket, or "mortise," carved into the edge of a door. Unlike cylindrical locks, which are mounted on the surface, mortise door locks offer a robust solution for various security needs. Typically featuring a heavy-duty metal construction, mortise locks are renowned for their strength and reliability.

Pros and Cons of Mortise Locks

Pros:

  • Enhanced Security
  • Durability
  • Versatility

Cons:

  • Complex Installation
  • Higher Cost

Key Features and Common Applications of Mortise Locks

Mortise locks are commonly used in high-security areas where durability and reliability are paramount. Typical applications include offices, schools, hospitals, and government buildings. Additionally, they offer customizable options, including key-operated deadbolts, thumb turns, and privacy functions, providing flexibility to meet various security needs.

Tubular Locks

Tubular locks are a type of mechanical lock commonly used for their simplicity and reliability.

Pros and Cons of Tubular Locks

Pros:

  • Easy Installation
  • Reliable Durability

Cons:

  • Basic Security
  • Limited Features

Key Features and Common Applications of Tubular Locks

Tubular locks are valued for their simplicity, durability, and aesthetic appeal. Their simple design ensures ease of operation and maintenance. Available in various finishes and lever styles, they complement different styles and needs. Commonly residential and multifamily settings, tubular locks offer a practical security solution that balances ease of use with reliable performance.

Interconnected Locks

Interconnected locks are a specialized type of mechanical lock designed to integrate both cylindrical lock and deadbolt into a single unit. These locks feature a unique design where the operation of one part of the lock affects the other, providing a synchronized locking and unlocking experience.

Pros and Cons of Interconnected Locks

Pros:

  • Single Motion Egress
  • Enhanced Security
  • Convenient Operation

Cons:

  • Higher Cost
  • Complex Installation

Key Features and Common Applications of Interconnected Locks

Interconnected locks are distinguished by their integrated mechanism, which ensures coordinated operation between the latch and lock bolt. They are ideal for various applications where security and operational efficiency are crucial but are most used on unit entry doors of multifamily settings.

Deadbolts

Deadbolts are a type of mechanical lock designed to provide maximum security by utilizing a solid, heavy-duty metal bolt that secures the door directly into the frame. Unlike spring-based latches, deadbolts are not reliant on a spring mechanism, making them significantly more resistant to forced entry.

Pros and Cons of Deadbolts

Pros:

  • High Security
  • Long-Lasting Durability
  • Versatile Options

Cons:

  • Manual Locking / Unlocking

Key Features and Common Applications of Deadbolts

Deadbolts are renowned for their solid construction and security-focused design, making them a crucial component in commercial security systems. Constructed from heavy-duty materials like hardened steel, deadbolts are built to withstand frequent use and resist tampering. Available in various configurations to fit your needs. Deadbolts can be used in a wide variety of applications from office settings to residential use.

Padlocks

A padlock is a portable, mechanical lock known for its versatility and ease of use. It features a U-shaped metal shackle that can secure a variety of items. Padlocks are commonly used for securing gates, lockers, doors, and other items where temporary or portable security is required.

Pros and Cons of Padlocks

Pros:

  • Portability
  • Versatility
  • Simplicity

Cons:

  • Security Vulnerabilities
  • Limited Protection

Key Features and Common Applications of Padlocks

Padlocks are essential in commercial settings, securing everything from machinery and storage units to stockrooms and delivery trucks. Their versatility and strength make them crucial for safeguarding a wide range of assets in a multitude of settings. With multiple shackle heights and padlock body sizes, you are sure to find one to meet your needs.

Secure Your Buildings with PDQ

Contact PDQ today to learn more about our mechanical lock offerings! From Light Duty to Heavy Duty, we’ll have your next project secured. Our expert team is ready to assist you in finding the ideal lock for your next project, ensuring top-notch security and peace of mind. Don't compromise on safety—reach out to us now and let PDQ secure your future with quality you can trust