MUL-T-LOCK 008J-MD1-05-D Cronus Deadbolt Single Cylinder Thumb Turn Finish

( Brand: Mul-t-lock ), ( Manufacturer Part Number: 008J-MD1-05-D ), ( Model: CRONUS ), ( Unit Count: 1.0 ), ( Recommended Uses For Product: Security ), ( Color: Polished Brass ), ( Controller Type: Hand Control ), ( Items Included: Hardware, Instructions, Key ), ( Material: Brass, Metal, Alloy Steel, Brass ), ( Suitable For: Cellar Door, Commercial, Fire Door, Front Door, Front Entrance Door, Residential, Side Entrance Door/backdoor ), ( Lock Type: Key Lock ), ( Type: Deadbolt ), ( Item Shape: Round ), ( Ansi Grade: Ansi Grade 2 ), ( Country Of Origin: United States )

Review MUL T LOCK Cronus Deadbolt Grade Single Cylinder Thumb Turn Brass Finish

The **Mul-T-Lock 008J-MD1-05 Cronus Deadbolt** is a premium, high-security single-cylinder deadbolt designed to deliver unmatched protection and convenience for residential and light-commercial applications. Engineered with a robust **Cronus series** construction, this deadbolt features a **fully mortised installation** that seamlessly integrates into standard door frames, ensuring a clean, flush finish that enhances both aesthetics and security. Its **single-cylinder mechanism** operates smoothly with a keyed entry from the exterior and a convenient thumb-turn latch from the interior, allowing for effortless locking and unlocking without the need for a key. The deadbolt is crafted from **high-grade steel**, providing exceptional resistance to forced entry, prying, and drilling, while its **durable zinc-plated finish** resists corrosion, rust, and wear, making it ideal for both indoor and outdoor use in varying climates.

One of the standout features of the Cronus series is its **patented anti-sawing design**, which incorporates strategically placed internal obstructions that deter sawing attempts, significantly increasing the difficulty for intruders. The deadbolt also includes a **reinforced strike plate** that, when properly installed, helps prevent the door from being kicked in, adding an extra layer of defense. For added convenience, the **thumb-turn latch** is designed to be easily accessible, allowing homeowners to secure their doors with a simple twist of the wrist, while the **keyed entry** ensures that only authorized individuals can unlock the door from the outside. The deadbolt s **smooth, low-friction mechanism** operates quietly and reliably, even after prolonged use, reducing the risk of mechanical failure over time.

Beyond its security features, the Cronus deadbolt is engineered for **easy installation and customization**. The **mortised design** allows for a flush fit with the door surface, eliminating the need for additional trim or cover plates, while the **adjustable strike plate** accommodates minor door frame variations, ensuring a secure and snug installation. The deadbolt is compatible with a wide range of door thicknesses, typically accommodating doors between **1 " and 2"**, though precise measurements should be taken before installation to ensure the best fit. Whether used in a primary residence, a vacation home, or a small business, the **Mul-T-Lock 008J-MD1-05 Cronus Deadbolt** offers a perfect blend of security, durability, and functionality, providing homeowners with peace of mind against unauthorized access.

### **Pros and Cons of the Mul-T-Lock 008J-MD1-05 (Cronus Deadbolt, Single Cylinder, Thumb Turn, Finish)**

1. **High Security Rating** The Cronus deadbolt is classified as a **Grade 1** by the **BHMA (Builders Hardware Manufacturers Association)**, the highest security rating available. It meets or exceeds ANSI/BHMA security standards, making it resistant to common picking, drilling, and forced entry techniques.

2. **Durable Construction** Made from **zinc alloy die-cast housing**, it is resistant to corrosion and wear, ensuring long-term reliability. The **hardened steel core** provides additional protection against drilling.

3. **Single-Cylinder Design with Thumb Turn** The single-cylinder mechanism simplifies installation (only one key is needed for locking/unlocking from the outside) while still offering security. The **thumb turn** allows easy entry from the inside without a key, which is useful in emergencies.

4. **Weather-Resistant Finish** The **brushed nickel or other finish options** (depending on model) are designed to resist tarnishing and fading, making it suitable for both indoor and outdoor use.

5. **Easy Installation** Designed for **standard door prep**, it can be installed on most residential doors with minimal tools. The manufacturer provides clear instructions, and it is compatible with most existing door hardware.

6. **Keyway Compatibility** Uses a **standard pin-tumbler keyway**, meaning you can use existing keys or easily rekey the lock if needed.

7. **Aesthetic Appeal** Available in multiple finishes (e.g., brushed nickel, oil-rubbed bronze, satin brass), it can complement various door styles and home decor.

8. **Good Value for Security** Compared to other high-end deadbolts, the Cronus offers excellent security at a relatively affordable price.

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1. **Single-Cylinder Vulnerability** Unlike a **double-cylinder deadbolt**, this model requires a key to lock/unlock from the outside. This can be inconvenient if you need to exit quickly (e.g., in a fire or emergency) without a key. Some building codes require double-cylinder deadbolts for exterior doors, so check local regulations.

2. **Key Loss Risk** Losing the key means you ll need to **rekey the lock or replace it entirely**, which can be costly if you don t have a spare.

3. **Not ADA-Compliant** Since it requires a key for outside operation, it does not meet **ADA (Americans with Disabilities Act)** standards for accessible door hardware, which may be a concern for public or commercial buildings.

4. **Limited Smart Home Integration** Unlike some newer deadbolts, the Cronus does not have **Wi-Fi, Bluetooth, or smart lock features**, meaning you cannot control it via a smartphone app or integrate it with smart home systems.

5. **Installation Requires Precision** While generally easy, improper installation (e.g., misalignment, weak strike plate) can compromise security. If you re not experienced with hardware installation, hiring a professional may be necessary.

6. **No Built-In Alarm or Anti-Saw Features** Some high-end deadbolts include **anti-saw pins or alarm mechanisms** to alert you if someone is tampering with the lock. The Cronus lacks these additional security layers.

7. **Finish May Show Wear Over Time** While durable, some finishes (e.g., brushed nickel) can develop fingerprints or scratches, which may affect appearance over time.

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The **Mul-T-Lock 008J-MD1-05 Cronus deadbolt** is an excellent choice for homeowners seeking **high security at a reasonable price**. Its **Grade 1 rating, durable construction, and ease of installation** make it one of the best standard deadbolts available. However, its **single-cylinder design** means it may not be ideal for all situations, particularly where quick egress is required or ADA compliance is necessary.

If **emergency access** is a priority, consider a **double-cylinder deadbolt** or a **smart deadbolt** with keypad/key options. If **maximum security and durability** are your top concerns, the Cronus is a **strong recommendation** for residential use, especially for primary entry doors.

- You prioritize **high security** (Grade 1) and **durability**.

- You prefer a **single-cylinder design** (and don t need quick egress without a key).

- You want a **reliable, long-lasting** lock at a **fair price**.

- Your door setup allows for **standard deadbolt installation**.

- You need **emergency egress** (opt for a **double-cylinder deadbolt** or a **smart lock with backup power**).

- You want **smart home integration** (look for **Wi-Fi-enabled deadbolts** like Schlage Encode or Yale Assure).

- Your door is **high-traffic or commercial** (ensure compliance with **ADA or building codes**).

Details:

part #: 008jmd105 price

• $135.00

specifications locsedoo:

• brand: Mul-t-lock
• mpn: 008j-md1-05-d
• model: Cronus
• unit count: 1.0
• recommended uses for product: Security
• color: Polished Brass
• controller type: Hand Control
• items included: Hardware, Instructions, Key
• material: Brass, Metal, Alloy Steel, Brass
• suitable for: Cellar Door, Commercial, Fire Door, Front Door, Front Entrance Door, Residential, Side Entrance Door/backdoor
• lock type: Key Lock
• type: Deadbolt
• item shape: Round
• ansi grade: Ansi Grade 2
• country of origin: United States

payments locsedoo:

• credit card: Diners-club
• wallet: Paypal
• other

seller locsedoo:

• rating: 100.0%
• # reviews: 705
• city: Columbia, South Carolina

general locsedoo:

• Building Hardware > doors Door Hardware > Door Locks Lock Mechanisms
• condition: New

shipping locsedoo:

• service: USPS Ground Advantage
• transit: 5-11 Days
• type: Calculated
• carrier: USPS
• class: Standard
• cost: $19.35

returns locsedoo:

• paid by: Buyer
• time: 60 Days
• method: Money back
• policy: Returns Accepted

offer locsedoo:

• quantity: 1
• started: February 22, 2026
• options: Ship-to-home
• sold: 0
• availability: In Stock

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