MUL T LOCK 800 High-Security Deadbolt

A Deep Dive into the MT5+ Platform’s Technology

When it comes to the primary entry points of your home or business, “good enough” is never good enough. The deadbolt is the single most important piece of hardware defending against forced entry, yet most standard locks offer minimal resistance to determined attackers. To truly fortify your doors, you need a locking solution that has been independently tested and certified to withstand the most extreme stresses.

At Guardian Angel Lock & Security, we are proud to offer the MUL-T-LOCK 800 High-Security Deadbolt, a locking solution that represents the pinnacle of mechanical security. Certified with an ANSI/BHMA Grade 1 rating—the highest available—this deadbolt is engineered for uncompromising strength, durability, and resistance to attack. It is the definitive choice for homeowners and businesses who refuse to compromise on safety.

Understanding Security Grades: Why “ANSI/BHMA Grade 1” Matters

It’s easy to get lost in marketing terms, but a Grade 1 certification is not just a slogan—it’s a verifiable promise of performance. The American National Standards Institute (ANSI) and the Builders Hardware Manufacturers Association (BHMA) are independent bodies that set rigorous standards for door hardware. Locks are tested and graded on a scale of 1 to 3, with Grade 1 being the highest.

To achieve a Grade 1 rating, a deadbolt like the MUL-T-LOCK 800 must endure a punishing series of tests designed to simulate years of use and aggressive forced entry attempts:

• Cycle Testing: The deadbolt must withstand at least 250,000 opening and closing cycles without failure, ensuring incredible long-term durability.
• Bolt Strength Testing: The bolt is subjected to extreme force tests to simulate a pry bar or kicking attack. The MUL-T-LOCK 800’s hardened steel bolt is designed to resist sawing and will not fail under immense pressure.
• Security Testing: The lock is subjected to a battery of professional attacks, including picking, drilling, and prying, to test the cylinder’s integrity and the housing’s strength.

This certification means you are installing a product trusted for use in high-stakes commercial, industrial, and institutional environments, and now you can have that same level of protection for your own property.

MUL T LOCK 800 Deadbolt’s Features

The Grade 1 certification is just the beginning. The MUL-T-LOCK 800 is packed with proprietary technology and robust design features that make it a leader in its class.

Patented High-Security Cylinder Technology

At the heart of the 800 deadbolt is a precision-engineered MUL-T-LOCK high-security cylinder. This cylinder utilizes a unique telescopic pin-within-a-pin tumbler mechanism. Unlike standard locks that have a single shear line, this design requires two shear lines to be aligned simultaneously for the lock to open. This makes manipulative attacks like lock picking exponentially more difficult for even the most skilled criminals.

The Unbreakable Chain of Key Control

A lock’s physical strength is only half the battle. The MUL-T-LOCK 800 platform gives you complete control over who can have a key. The keyway is patented and restricted, meaning key blanks are not available on the open market. As authorized dealers, we can only duplicate a key upon presentation of your unique magnetic key card and a valid photo ID. This system prevents unauthorized copies from being made by disgruntled former employees, temporary staff, or anyone else, ensuring you always know exactly who has access to your property.

Robust, Heavy-Duty Construction

The MUL-T-LOCK 800 is built to be a formidable physical barrier. Its components are crafted from premium-grade, heavy-duty materials designed for maximum strength:

• Solid Steel Construction: The deadbolt housing is made from solid steel to resist crushing and prying.
• Hardened Steel Bolt: The 1-inch throw bolt is made of hardened steel and contains an advanced anti-saw pin to defeat cutting attacks.
• Reinforced Strike Plate: The deadbolt comes with a heavy-duty, reinforced strike plate and extra-long screws that anchor deep into the door frame, not just the trim. This dramatically strengthens the weakest point of the door against kick-in attacks.
• Hardened Steel Inserts: The cylinder itself is protected by hardened steel inserts that resist drilling and forced extraction attempts.

Versatile Design and Finishes

Ultimate security doesn’t require sacrificing style. The MUL-T-LOCK 800 is available in both single-sided and double-sided cylinder configurations and comes in a variety of beautiful, durable finishes to complement your existing hardware and decor. Options include Polished Brass, Satin Chrome, Oil-Rubbed Bronze, and more, allowing for seamless integration into any architectural style.

The Importance of Professional Grade 1 Installation

Purchasing a Grade 1 deadbolt is the first step. Ensuring it’s installed correctly is the second, and it’s just as critical. An improperly installed high-security deadbolt can fail under pressure, completely negating its advanced features. Misaligned bolts, screws that don’t fully engage the door stud, or an improperly prepared door can all create weak points for an attacker to exploit.

The certified technicians at Guardian Angel Lock & Security are factory-trained in the proper installation of MUL-T-LOCK hardware. We don’t just install your lock; we reinforce your door’s security. We ensure the deadbolt is perfectly aligned, the strike plate is securely anchored to the frame, and the entire assembly functions smoothly and reliably, providing the full benefit of its Grade 1 rating.

Frequently Asked Questions (FAQ)

What is the difference between this and an electronic smart lock?
The MUL-T-LOCK 800 is the pinnacle of mechanical security, designed to resist physical force and manipulation. Many smart locks offer convenience but have lower-grade mechanical components. For ultimate security, we often recommend a layered approach: using the MUL-T-LOCK 800 as your primary, heavy-duty deadbolt, complemented by a smart lock handle for keyless convenience.

Can the MUL-T-LOCK 800 be master keyed with other locks?
Yes. The cylinder inside the 800 deadbolt can be keyed alike with other MUL-T-LOCK products or incorporated into a complex master key system, making it an excellent choice for commercial properties or homes with multiple entry points.