PRIME-LINE
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Prime-Line S 4180 Door Knob Lock-Out Device Prevents Turning of Door Knob and Access to Keyhole, Can be Used for Home Rentals, Evictions, Job Sites & More Keyed Alike, Diecast, Gray (Single Pack)
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Prime-Line S 4180 Door Knob Lock-Out Device Prevents Turning of Door Knob and Access to Keyhole, Can be Used for Home Rentals, Evictions, Job Sites & More Keyed Alike, Diecast, Gray (Single Pack)
PREVENT ACCESS TO KEYHOLE – This door knob lock-out device prevents turning of knob and access to keyhole, ensuring others with a key are not able to unlock the door.
Prime-Line S 4180 Door Knob Lock-Out Device Prevents Turning of Door Knob and Access to Keyhole, Can be Used for Home Rentals, Evictions, Job Sites & More Keyed Alike, Diecast, Gray (Single Pack)
Item #: 2138723

Prime-Line S 4180 Door Knob Lock-Out Device Prevents Turning of Door Knob and Access to Keyhole, Can be Used for Home Rentals, Evictions, Job Sites &

Item #: 2138723

BDT 2767

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

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Order now and get it around Thursday, July 09
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PREVENT ACCESS TO KEYHOLE – This door knob lock-out device prevents turning of knob and access to keyhole, ensuring others with a key are not able to unlock the door.
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What Stands Out

Security Focus
Effectively prevents unauthorized access by locking out door knobs, providing enhanced security for homes, rental properties, and job sites.
Versatile Use
Ideal for various scenarios, including home rentals, evictions, and construction sites, ensuring peace of mind in different environments.
Durable Material
Constructed from sturdy diecast material, this device guarantees long-lasting use and reliability, maintaining its performance under various conditions.

Product Details

Prevent access to keyhole with this durable Door Knob Lock-Out Device. Ideal for rentals, evictions, and more. Easy installation and quick lock mechanism. Shop at Ubuy Bangladesh
Item Weight0.3 lbs (140 grams)

Who Should Buy?

Suitable For
  • Property Managers

    Ideal for property managers needing to secure rentals during transitions or evictions, providing peace of mind.

  • Construction Sites

    Useful for job sites where tools and materials need protection from unauthorized access, enhancing site security.

  • Short-Term Rentals

    Perfect for homeowners utilizing short-term rental services who need a secure method to manage access for guests.

Not Suitable For
  • Permanent Residences

    Not suitable for homes requiring standard access, as the device disables door knob functionality entirely.

  • Frequent Access Needs

    Inconvenient for users needing regular entry, as it significantly hampers ease of use with the door.

  • Ornate Door Knobs

    May not fit well with decorative or sensitive door knobs, potentially causing damage or aesthetic issues.

Product Description

Prime-Line S 4180 Door Knob Lock-Out Device Prevents Turning of Door Knob and Access to Keyhole, Can be Used for Home Rentals, Evictions, Job Sites & More Keyed Alike, Diecast, Gray (Single Pack)

About This Item

Introducing the Prime-Line S 4180 Door Knob Lock-Out Device – the perfect solution to prevent unauthorized access to locked doors. This innovative lock-out device is designed to prevent the turning of the door knob and access to the keyhole, providing an extra layer of security for your home, office, or any other space. Ideal for various applications, including home rentals, evictions, job sites, and more, this door knob lock-out device is a must-have for anyone looking to enhance security and control access to their space. Constructed with durability in mind, this lock-out device features a gray diecast construction with a painted finish, ensuring long-lasting performance. The cylinder is securely held in place with an O-ring, and it can be easily removed when the device is open and unlocked.

Please note that the cylinder cannot be removed when the device is closed and locked, providing added security. Installation is quick and easy – simply place the door knob lock-out device over the door knob, lock it, and you're good to go. It is designed for keyholes in round door knobs with a maximum outside diameter of 2-7/16 inches. Please note that it will not work with door knobs of larger diameters.

The shaft cut-out is oval/oblong in shape, measuring 1-3/4 inches x 1-1/2 inches, and it may fit loosely over some door knobs with round, slender shafts. Please note that these lock-out devices are specifically designed to be used over keyed/locked door knobs, effectively blocking access to the keyhole. If you have lever-type door knobs, please refer to model number S 4181 for the appropriate lock-out device. Choose the Prime-Line S 4180 Door Knob Lock-Out Device for reliable and convenient security. Don't compromise on your safety – get yours today and have peace of mind knowing your space is protected.

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the Prime-Line Products S 4180 Door Knob Lock-Out Device?

    Answer: The Prime-Line Products S 4180 Door Knob Lock-Out Device is a security tool designed to prevent unauthorized entry through standard door knobs. Made from durable diecast construction, it features a gray painted finish for added aesthetic appeal and corrosion resistance. This device is particularly useful in settings where temporary access control is needed, such as during home renovations or office reconfigurations. Its 'keyed alike' function allows multiple locks to be operated with the same key, enhancing convenience.
  • Question: How does the lock-out device work?

    Answer: The S 4180 functions by securing the internal mechanism of the door knob, effectively preventing it from being turned. To use, simply install the device into the door knob; it locks into place using a key. This design is beneficial in environments where safety is a priority, allowing you to restrict access without the need for changing entire locking systems. Ideal for landlords, property managers, or anyone needing temporary access control.
  • Question: What materials are used in the construction of the S 4180?

    Answer: This lock-out device is constructed from high-quality diecast materials, ensuring strength and durability. The gray painted finish not only increases its visual appeal but also adds a layer of protection against wear and environmental factors, making it suitable for both indoor and outdoor use. This robust construction is particularly advantageous for environments that experience high traffic or exposure to elements.
  • Question: Is the S 4180 suitable for outdoor use?

    Answer: Yes, the Prime-Line S 4180 Lock-Out Device is suitable for outdoor use due to its diecast construction and protective gray paint. These features help resist corrosion and wear, making it an ideal choice for securing outdoor entrances. It's perfect for securing garages, sheds, or any exterior door that needs added protection against unauthorized access while still being accessible for those with the key.
  • Question: Can the lock-out device be easily installed?

    Answer: Installation of the S 4180 lock-out device is straightforward, requiring basic tools such as a screwdriver. The package includes clear instructions that guide you through the process, allowing for a quick setup. This ease of installation makes it an excellent option for both DIY enthusiasts and professionals looking for a reliable yet uncomplicated solution to improve security.
  • Question: What does 'keyed alike' mean?

    Answer: 'Keyed alike' refers to a locking system where multiple locks can all be opened using the same key. In the case of the S 4180, it allows for easy management of multiple access points without needing a separate key for each lock. This feature is particularly useful in managing properties with several entry points or in situations where multiple users require access, simplifying the process while enhancing security.
  • Question: What applications are best suited for the S 4180 lock-out device?

    Answer: The Prime-Line S 4180 lock-out device is well-suited for various applications, including residential homes, rental properties, and commercial spaces. It's particularly useful for managing access during renovations, real estate showings, or even for temporary events where controlling entry is important. Its design allows it to be an efficient solution for anyone needing to enhance security while providing ease of access where necessary.
  • Question: How do I maintain the S 4180 device?

    Answer: Maintenance of the Prime-Line S 4180 lock-out device is simple due to its durable materials. Regularly check the key and locking mechanism for debris or dirt, and clean it with a damp cloth if necessary. Avoid using harsh chemicals, as these can damage the painted finish. Proper care will ensure the device remains functional and visually appealing over time.
  • Question: Can I use the S 4180 with all types of door knobs?

    Answer: The Prime-Line S 4180 is designed to fit standard door knob types, making it compatible with most installations. However, it's essential to ensure that your door and knob design meet the size and shape requirements specified in the product details. If you're replacing an existing lock or installing in a unique setting, confirm compatibility to ensure optimal performance and security.
  • Question: Where can I buy the Prime-Line Products S 4180 Door Knob Lock-Out Device?

    Answer: You can purchase the Prime-Line Products S 4180 Door Knob Lock-Out Device from Ubuy in Bangladesh. Ubuy offers a reliable online buying experience, ensuring you receive authentic products delivered to your location. With various payment options and customer support, Ubuy is a convenient choice for securing your entry points with this reliable locking solution.

PRIME-LINE Devices Editorial Review

The Door Knob Lock is a perfect solution to keep children and people with dementia or Alzheimer's from unlocking and opening doors. By keeping the latch tongue out of alignment, the lock prevents anyone from turning the door knob. It fits the rounded door knobs and comes with two keys. However, there are questions about the device's vulnerability to tampering, especially using a paperclip, and its effectiveness against determined intruders with more efficient methods to enter. Overall, this device solves the purpose of securing the door knob, and its rugged Construction and good quality recommend it as a worthwhile purchase.

Customer Reviews & Ratings

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Pros

  • Sturdy and good quality Construction
  • Fits the rounded door knobs
  • Two keys included
  • Works well to keep young children or dementia patients from unlocking and opening doors

Cons

  • Vulnerability to tampering with a paperclip

Platform Trust & Buyer Confidence

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4.3/5 9,000 + reviews
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MT
Mohd
Verified buyer

“The product received very good packaging & safe…Thank You”

16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer

“Accurate delivery timing given”

16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer

“Not madly expensive like I thought, and much quicker than promised.”

15 June 2026 · via Trustpilot
LM
Leila
Verified buyer

“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”

6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer

“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”

12 June 2026 · via Trustpilot
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Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

BDT 2767

Order now and get it around Thursday, July 09

QTY:

Secured transactionsecured transaction

Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • Prevents access to the keyhole, ensuring security
  • Ideal for rentals, evictions, home sales, job sites, and storage
  • Quick and easy installation
  • Durable diecast construction with a gray painted finish
  • Cylinder is removable when unlocked
  • Fits round door knobs up to 2-7/16 in. outside diameter