14 best window locks

Window locks are essential hardware components used to secure windows in homes, buildings, and various other structures. These locks are designed to prevent unauthorized access, enhance security, and provide peace of mind for homeowners and occupants. Here is some information about window locks:

  1. Types of Window Locks:

    • Sash Locks: Sash locks are commonly used on double-hung windows, where the upper and lower sashes can be moved up and down. These locks prevent both sashes from being opened, thereby securing the window.
    • Casement Window Locks: Casement windows are hinged and swing open like a door. Casement window locks are designed to secure the window in a closed position and often feature a handle for easy operation.
    • Sliding Window Locks: Sliding window locks are used on horizontal sliding windows. They typically employ a bolt or pin mechanism to prevent the window from sliding open.
    • Window Latches: Latches are simple devices used on many types of windows. They allow the window to be partially opened while providing some level of security.
  2. Keyed and Non-Keyed Locks:

    • Some window locks are keyed, meaning they require a key to unlock or lock the window. This provides a higher level of security.
    • Non-keyed window locks can be locked and unlocked without a key, making them more convenient but potentially less secure.
  3. Materials and Finishes:

    • Window locks are available in various materials, including metal (such as brass, stainless steel, or aluminum) and plastic.The choice of material can impact the lock's durability and appearance.
    • They come in different finishes, allowing homeowners to match the locks to their existing window hardware and decor.
  4. Child Safety: Window locks can also serve as a safety feature, particularly for families with young children. They can prevent children from opening windows wide enough to pose a falling risk.

  5. Ventilation: Some window locks are designed to allow for partial window opening, providing ventilation while maintaining security. These locks are particularly useful for controlling airflow in a room.

  6. Installation: Window locks can be installed by homeowners or professionals, depending on the type of lock and window. Many locks come with installation instructions and necessary hardware.

  7. Local Building Codes: It's important to check local building codes and regulations when installing window locks, as they may have specific requirements for window security and safety.

Window locks are an essential part of home security, helping to deter unauthorized entry and ensuring the safety of occupants. They come in various types and styles to suit different window configurations and aesthetic preferences. Properly installed and maintained window locks can enhance the overall security and functionality of your windows in both residential and commercial settings.

Below you can find our editor's choice of the best window locks on the market
  

Brown Bear, Brown Bear, What Do You See?

Based on 24 reviews Check latest price

Lion Locks Aluminum Sliding Door and Window Lock, Pack of 10

Based on 2 reviews Check latest price

Product description

This double thumb screw from Lion Locks is constructed from heavy-duty extruded aluminum, It utilizes a double thumbscrew design for added gripping power to mount onto your window track, or sliding door, and help securely lock your sliding windows or sliding doors in a closed or ventilating position. This lock requires no tools for installation. Use these to prevent a window or sliding door from being forced open from the outside etc... Easy to attach - just place the slider lock on the upper or lower track of any sliding window or door. (Use 2 per window or door: one on top, one on the bottom for best efficiency). Inner vinyl lining prevents scratching damage. These slider locks are perfect for patio doors, sliding glass doors, sliding windows, retractable screen doors, or sliding storm windows. 2 inch wide. These slider locks will fit along a track that is up to 3/16 inches wide. They will also fit without the rubber on a track that is up to 3/8 inches wide.

  • These slider locks will fit along a track that is up to 3/16 inches wide. They will also fit without the rubber on a track that is up to 3/8 inches wide
  • These slider locks are perfect for patio doors, sliding glass doors, sliding windows etc
  • Heavy-duty aluminum construction, Inner vinyl lining prevents scratching damage
  • Additional gripping power securely locks window in closed or ventilating position
  • Easy installation with no tools required. Utilizes double thumbscrews to mount on window or sliding door track

User questions & answers

Question: How wide/deep(not length) is the opening without the rubber insert
Answer: If I remember correctly, the handles can be flipped.
Question: do you know what the interior measurement of the clamp is? (ie., how thick can the track be to fit in and get screwed into) - Thanks
Answer: it's always unlocked from the inside-It's to prevent entry from like from the inside of your garage to the inside of your house. You walk out you lift the handle up and it locks. Then you out the side door of your garage. This is more of an interior lock-set not made for outdoor Alaskan weather. The desert it would perform good.
Question: I have windows that raise up to open, will these work on those as well
Answer: Interior only! There is no waterproof membrane for the individual buttons, the pot metal would corrode and or freeze in the winter of wet.
Question: Whatvsize window frame do these fit? My frame is larger than 1/4 inch
Answer: Not that I know of.

M MOKENEYE 12PC Adjustable Sliding Window Locks, Window Door Frame Security Locks with Key, Heavy Duty Aluminum Alloy Sliding Window Stops for Home, Office

Based on 24 reviews Check latest price

Product description

Easy to install:

there is no need to install extra tools, it equips a hex key in each window locks, holding on the track by key control

Widely usage:

It can be easily applied to most environments.By keeping the windows partially open and closed,the burglar-proof and thieves can prevent children from falling and protect the safety of their families while improving air circulation.

Specifications:

Size: 1.18 x 0.94 x 0.94 inches (LWH)

Material: Aluminum alloy

Quantity: 12 sets

 

Notice:

Please confirm your window rail heights at least 0.6in, rail thickness nomore than 0.63in.

 

Package include:

12 x Adjustable Sliding Window Locks

  • 【ADJUSTABLE SLIDING WINDOW LOCKS】- These sliding window locks can be easily applied to most environments; By keeping the windows partially open and closed, the burglar-proof and thieves can prevent children from falling and protect the safety of their families while improving air circulation.
  • 【QUALITY MATERIAL】- Made of aluminum alloy, which is sturdy and strong, and there's a yellow plastic cover outside the key handle, can serve you a long time.
  • 【EASY TO INSTALL】- Each lock is equipped with hex key, spin the key slowly through the hole, just holding on the track by key control, no additional installation tools.
  • 【PACKAGE INCLUDE】- 12 x sliding window locks with key; Note: multiple locks can be applied to heavy window or door together to increase safety
  • 【LIFETIME GUARANTEE】- M MOKENEYE aims to ensure the highest customer satisfaction and the greatest efficiency of our products. If you have any question, please contact us, we will try our best to meet your demand.

QBOSO Sliding Window Security Lock, 6PC Window Security Locks with Key for Home and Office(Aluminum) No Screws or Tools Required

Based on 7 reviews Check latest price

Product description



Our QBOSO Window Security Locks is designed to prevent burglars and thieves, and avoid falling accidents by keeping the windows opened or closed;

  • Compact Design – Compact and removetable design allows it fits in narrow places, great for patio doors, sliding glass doors, sliding windows etc.
  •  Material – constructed of aluminum alloy, sturdy and strong, and the key handle with plastic cover work greatly when unlock and serve you a long time
  • Scratching-Proof– Inner rubber pad prevents scratching damage, This Sliding Door and Window Lock is a great solution for keeping the windows opened or closed; while protecting the safety of the family.
  • No Screws or Tools Required – Easy to Install,Work great for tracks that is up to 1/2 inches wide maximum. They will also fit without the black rubber on tracks that is up to 5/8 inches wide maximum. track thickness no greater than 5/8 inches.
  •  Package – 6x locks, including 6xkeys . please feel free to contact us and we will give you a solution.

Safety Innovations - Childproof Your Windows and Sliding Doors with Our Window and Door Babyproof Safety Lock, (4-Pack)

Based on 794 reviews Check latest price
  • MOM AND DADS AGREE SAFETY IS FIRST: We know you put your baby's safety at the top of your list. That's why you'll appreciate our Safety Innovations Window and Door Safety Stop. This helpful device keeps windows, sliding glass doors, sliding shower doors and mirrored sliding closet doors locked to keep your baby safe.
  • YOUR BABY'S SAFETY IS OUR #1 PRIORITY TOO: We know how curious kids are! Our goal is to help all moms and dads keep their kids safe. Our Window and Door Safety Stop keeps windows and sliding glass doors locked to prevent window falls and to keep your children from wandering into unsafe areas.
  • EASY TO USE: Simple sliding motion locks and releases.
  • EASY TO INSTALL-NO SCREWS, NO DRILLING, NO MESSY ADD-ON ADHESIVES: Comes with pre-applied, heavy-duty industrial strength 3M VHB tape. Just peel the paper off backing and attach to your window or glass door. No mechanical skills required!
  • FOR ADDED SAFETY WE RECOMMEND USING 2 LOCKS ON EACH WINDOW OR DOOR: Keep you windows and sliding glass doors locked so your baby is safe and secure.

User questions & answers

Question: How many windows can this 4 pack do
Answer: I used 2 per window. I have had them on for over a year and they have not come off. The adhesive is very strong. Which I needed for my toddlers room.
Question: Are these astm f2090 certified (required for pool
Answer: No they are not.
Question: Can I reuse/replace adhesive if I need to move the lock
Answer: I haven’t personally tried moving them but I would think you could either use command strips in the first place (so it’ll come off easier) or use the included adhesive and it should still come off. I don’t remember any extra adhesive strips in the packaging, but if you move it the command strips would fit. Hope that helps!
Question: Are these astm f2090 approved
Answer: I can’t help you. We only use them to restrict the window movement. We don’t have animals or children so safety wasn’t a concern. I will tell you that on properly cleaned glass they will not come off once applied.

Toddleroo by North States Sliding Window & Door Wedge Locks | Limits The Space That Windows and Sliding Doors can Open | No Tools Required | Baby proofing with Confidence (4-Pack, White)

Based on 284 reviews Check latest price

Product description

A little extra home security is exactly what you want now that your bundle of joy is on the go. The Toddleroo by North States window & door wedge locks help prevent your child from sliding windows and doors open. This 4-Pack set helps you safeguard four spots in your house. They work in multiple Places, including double hung and horizontal sliding windows and doors, by limiting the height the window or door can open. The window & door wedge locks feature an easy hook and loop installation, with no tools, no screws, no nails, No damage to your windows or sliding doors. Available in a soft White color sure to stylishly blend in with any home decor.

  • WINDOW & DOOR WEDGE LOCKS (4-pack): The perfect solution to prevent your curious little one from sliding windows and doors open.They work in multiple places, including double hung and horizontal sliding windows and doors, by limiting the height the window or door can open.
  • NEW NAME - SAME GREAT BRAND YOU TRUST: Toddleroo by North States not only makes the baby gates and yards that you love, but we now have a full line of babyproofing products to keep baby safe anywhere in your home!
  • SAFETY & CONVENIENCE: Our new childproofing line was thoughtfully designed to maximize safety, ease of use, and functionality. Easy to install, and safety you and your family can count on.
  • SIMPLE YET EFFECTIVE:The Window & Door Wedge Locks feature an easy hook and loop installation, with no tools, no screws, no nails, no damage to your windows or sliding doors. The soft white color stylishly blends in with any home decor.
  • MAKE YOUR HOME SAFE: Babies like to explore all those nooks and crannies’ around the house. With this 4-pack of sliding window and door wedge locks, you can help to keep your little one out of harm’s way.

User questions & answers

Question: Where's the adhesive? how do i stick it to the window frame? do i use super glue
Answer: Thank you for your question. The Sliding Window & Door Wedge Locks come with hook and loop strips for easy installation. No tools or glue is needed.
Question: Is this item suitable for home security. If it is installed I see that a child couldn't defeat it. How about an intruder from the outside
Answer: Thank you for your question. The Window and Door Wedge Locks are a childproofing safety product and not intended to be used as a defense from home intruders.
Question: Does this adhear to glass
Answer: Thank you for your question. The Sliding Window and Door Wedge Locks should not be adhered to glass and should only be adhered to the solid frame surrounding the glass.

Product features

Toddleroo by North States

Easy to install

Whether you want to keep your child from opening windows or keep them from opening cabinets containing dangerous items, our childproofing products have your safety needs covered.

Keep your baby safe

The Toddleroo by North States babyproofing line provides you with peace of mind while baby explores. With our wide range of products you can rest easy knowing your child is safe no matter which room they may be roaming in.

Sliding Window and Door Wedge Locks (sold separately)

Keep your little one from opening windows and sliding doors all the way with our Sliding Window and Door Wedge Locks (sold separately). These locks work in multiple places, including double hung and horizontal sliding windows and doors, by limiting the height the window or door can open.

Sliding Door and Window Lock (sold separately)

Opening up your house to get some fresh air always feels great but sliding windows and doors can pose a safety risk to your little ones. With the use of the innovative Sliding Door & Window Locks (sold separately), that never has to be a problem again. The professional grade adhesive and winged design stop the slide at the desired opening size and they work on both glass and wood surfaces.

Magnetic Safety Lock (sold separately)

Worry about what your toddler might get into as they explore cabinets around the house? The Toddleroo Magnetic Safety Locks (sold separately) allow you to secure these areas without compromising use. The locks install inside drawers or cabinets using professional strength adhesive & screws, and have a disable feature for when the lock is not in use.

Innovative ideas so your baby is always safe

Here at North States, we’ve been making homes safer for children and pets since 1953. Our mission is to produce innovative, superior quality products designed to provide the highest standards for safety, durability, and ease of use. Every single Toddleroo baby gate is designed to align with the stringent guidelines set forth by United States regulations.

Quality

Quality is everything to us. We maintain these high standards in every aspect of our business, starting with our employees. Our well-trained workers are dedicated to quality control and strive to provide you with the same level of superiority that they would expect for their own children and pets. We take pride in our work! We have fostered a company-wide culture of total dedication to customer needs.

Superior materials means superior safety

We also use only the best raw materials available for each of our products. No cutting corners here; we want our products to last at least as long as you need them—if not, longer. The vast majority of our products proudly display the 'Made in the USA' seal.

Boao Set of 15 Siding Window Locks Door Locks Adjustable Security Locks with Keys (Silver)

Based on 336 reviews Check latest price
  • Install easily: each lock is equipped with a key, no extra tools needed, you just need spin the key slowly through the hole and hold on the track by key control. Please check your window track before buying.
  • the locks are made of aluminum alloy, durable and rust-proof, can serve you for long time using
  • Various usages: the window locks can be applied to keep windows partially open or closed, enhancing air circulation, preventing burglars from entering or keep your kids safety; Fits for most vertical or horizontal sliding windows and doors
  • Size: the lock size is approx. 2.4 x 2 x 1.4 cm/ 0.94 x 0.79 x 0.55 inch (LWH), key length is approx. 2.7 cm/ 1 inch, apply to track heights more than 5 mm/ 0.2 inch and track thickness no greater than 6 mm/ 0.23 inch, please check the size before ordering. Please check your window track before buying.
  • 15 pieces sliding window locks with keys; Color: silver

User questions & answers

Question: Are these astm f
Answer: Without insert Width- 5/16” Depth- 1/2”
Question: What color are these? Some areas say white and other silver
Answer: without the rubber insert it is 7/16 ths
Question: Can it be used on a double hung window? Thank you
Answer: Yes, just put on the side. Left and right to be safe.
Question: What is the thread size of the thumb screw
Answer: these locks work great on the aluminum frame windows they were designed for. They will not work on vinyl framed windows unless you take the rubber out, and then they will mark up the frame

Product features

Step 1

Determine the opening area of the window.

Step 2

Put our product on the windowsill.

Step 3

Turning it clockwise and get it as tight as you can.

Step 4

Done.

Defender Security U 9819 Sliding Window Security Lock, Economy, Aluminum,(Pack of 4)

Prime-Line Products (Home Improvement)

Based on 4 reviews Check latest price

Product description

This secondary lock is constructed of aluminum and is used to lock your window in an open, ventilating position. It can fit up to a 1/8 In. wide rail. Comes in a nice natural finish.

From the Manufacturer

This secondary lock is constructed of aluminum and is used to lock your window in an open, ventilating position. It can fit up to a 1/8 In. wide rail. Comes in a nice natural finish.

  • Secondary Lock
  • Fits up to 1/8 In. thick rails
  • Allows window to lock in ventilating position
  • Easy to Install

User questions & answers

Question: Are these rust resistant
Answer: I don’t know I’ve had them for awhile n there’s no rust on mine .... all I know is I love them they worked great for me
Question: How many are in the package
Answer: There are 4 in a pack.
Question: Are the screws flat or pointed on the tip
Answer: They are pointed tips.
Question: What's the diameter of the hole? what type of set screw is it using
Answer: Diameter of the hole ? U don’t need screw for this. It comes with what it needs you unscrew it’s all the way slide it behind your window glass on the slider part and screw it tight. Makes sense ? I use on all my windows amazing . They also make one for your slider back doors it screws onto the frame.. works amazing

Product features

Defender Security U 9819 Sliding Window Security Lock, Economy, Aluminum

Extruded aluminum lock with steel thumbscrew for use on metal horizontal sliding windows. For heavier-duty locks see item no's U-9800, U-9802, U-11127, U-11128, U-9810 or U-9812. Finish by tightening thumbscrew with pliers to securely lock windows.

  • Secondary Lock
  • Fits up to 1/8 In. thick rails
  • Allows window to lock in ventilating position
  • Easy to Install

Defender Security U 9802 Sliding Window Lock, 1/4 in., Extruded Aluminum, White Painted Finish (Pack of 2)

Prime-Line Products (Home Improvement)

Based on 696 reviews Check latest price

Product description

This sliding window lock is constructed of extruded aluminum with a steel thumbscrew, and it comes in a white painted finish. The design of this lock is manufactured to fit on older style, metal framed windows – usually of single pane glass. For vinyl windows consider using Prime-Line model numbers U-9809 or U-10547. Once the lock has been mounted and hand-tightened, finish by tightening thumbscrew with pliers to securely lock windows in closed or ventilating positions. These locks are easy to install and are used by many to increase the security of their home.

From the Manufacturer

This sliding window lock is constructed of extruded aluminum with a steel thumbscrew, and it comes in a white painted finish. The design of this lock is manufactured to fit on older style, metal framed windows – usually of single pane glass. For vinyl windows consider using Prime-Line model numbers U-9809 or U-10547. Once the lock has been mounted and hand-tightened, finish by tightening thumbscrew with pliers to securely lock windows in closed or ventilating positions. These locks are easy to install and are used by many to increase the security of their home.

  • Used on vertical and horizontal sliding windows as a secondary window lock
  • For use on 1/4 in. max. thick fins
  • White painted finish
  • Extruded aluminum construction with steel thumbscrew
  • Used on vertical and horizontal sliding windows as a secondary window lock
  • For use on 1/4 in. max. thick fins
  • White painted finish
  • Extruded aluminum construction with steel thumbscrew

User questions & answers

Question: What is the width of the opening? My window rail is pretty thick and the ones I had on hand that I used at my previous residence aren't wide enough
Answer: The width of the channel opening is slightly more than 1/4".

10 Pack - Designers Impressions 53706 Oil Rubbed Bronze Window Sash Lock

Based on 159 reviews Check latest price

Product description

Designers Impressions 53706 Oil Rubbed Bronze Window Sash Lock - 10 Pack

  • High Quality Oil Rubbed Bronze Finish
  • Mounting Screws Included
  • Strike size: 3/4" x 2-1/2".
  • Crescent type : Easy slide/turn design
  • Brand New : Sold in a pack of 10

User questions & answers

Question: What are the dimensions of the "keeper"? Particularly what is the width? Thanks
Answer: If you mean the size of the top of the screw, the diameter is 1.3 cm.

PRIME-LINE F 2590 Sash Lock for Vertical and Horizontal Sliding Windows – Replace Broken Sash Locks for Additional Home Security, 2-1/4” Mounting Hole Centers, White Diecast

PRIME-LINE

Based on 730 reviews Check latest price

Product description

Maintain home security and replace old or broken window locks with this window sash lock. This sash lock has 2-1/4” mounting hole centers with a 3/8” latch projection that engages into the fixed rail of the top sash, without the use of a separate keeper. It is made of diecast zinc with a painted white finish. It’s strong, durable and made to last. Installation is quick and easy and the sash lock can be used on vertical, single and double hung aluminum sliding windows. These locks will also fit some horizontal, aluminum-framed sliding windows.

A locking replacement for this lock would be the Prime-Line part U 9933.

From the Manufacturer

This sash lock is constructed from die cast and comes finished in white. This lock does not use a separate keeper; instead the latch engages your fixed rail to lock the window. Used on vertical and horizontal sliding windows.

  • WINDOW SASH LOCK – This window sash lock includes one cam-action latch with fasteners and can be used on a variety of aluminum-framed sliding windows. The lock does not use a separate keeper, instead, the latch engages into the fixed rail to lock the window.
  • REPLACEMENT PART – Use this window sash lock to replace old or broken window locks to maintain security in your home.
  • EASY INSTALLATION – Installation is quick and easy, and the sash lock can be used on vertical, single and double hung aluminum sliding windows. These locks will also fit some horizontal, aluminum-framed sliding windows.
  • DURABLE – Made of diecast zinc with a white painted finish, this sash lock is strong, durable and made to last.
  • SIZING - This sash lock has 2-1/4” mounting hole centers with a 3/8” latch projection that engages into the fixed rail of the top sash.
  • IMPORTANT: Verify dimensions against line drawing image on this page before ordering

User questions & answers

Question: Are other colors available
Answer: Dimensions were standard - or same as hardware I replaced. However, this is very low quality. Would not recommend. Found more sturdy at Lowe's for ~$2.50/each. Good luck.
Question: What is the size of the screws included? I need to get matching flat washer
Answer: These did not work at all. They slid right off. I returned them.
Question: How many come in a pack/order
Answer: They are silver. I live on the ground floor and these make me feel very safe. You cannot lift the window up with them in place.
Question: does this lock double sliding windows
Answer: Did not work for me....it slid right off.

OYU Window Locks, 4 Pack Aluminum Alloy Sliding Door Lock for Kids & Pets, Window Security Safety Locks with Key, Double Window Locks for Sliding Windows Adjustable Window Stopper for Home and Office

Based on 69 reviews Check latest price
  • 【WINDOW LOCKS SECURITY】Size approx. 2.36 x 0.94 x 0.94 inch, apply to track with more than 0.6 inch heights and less than 0.63 inch thickness. Effectively reduce the risk of children & pets falling from heights, guard against theft. Keep your house safe, limit and fix windows for ventilation to improve indoor air quality.
  • 【UPGRADE PROTECTION DESIGN】This window lock is made of solid aluminum alloy, anti-rust and anti-aging. The upgraded double lock design is more secure and suitable for heavy doors and windows. The key can be removed and stored properly to prevent children from opening by mistake and eliminate all potential hidden dangers.
  • 【PROTECTIVE GASKETS】Each sliding window locks comes with a plastic protectice gasket, which can prevent scratches or damage to the window. This locks for windows with protective gasket can provides enough friction between the vertical window locks and the track to ensure that the window will not slide open.
  • 【EASY TO INSTALL】This adjustable lock for home is suitable for both windows and sliding doors. No hole installation saves time and effort. All you need to do is to spin the key through the hole and fix the window stopper on the track. No additional installation tools are needed. Easy to reuse and reinstall.
  • 【WHAT YOU GET】4 sets of window locks for sliding windows, including 4 sliding window locks stopper, 4 keys and 4 gaskets, can fully meet big family and large house requirement. Note: Heavy doors and windows should be fixed with multiple locks to improve stability and safety.

Product features

JUST A LOCK —— CHANGES YOUR LIFE

Children explore this wonderful world, puppies and kittens measure the territory with their paws, and old people open windows to welcome the first breeze in the morning......

Don't let sudden disasters ruin these good things in life.

NO HOLE INSTALLATION

No hole installation saves time and effort. With the matching key, the installation can be completed in two minutes, no additional installation tools required. Easy to reuse and reinstall.

PROTECTIVE GASKET

Each lock comes with a plastic gasket, which can be placed between the window frame and the window lock to protect the window structure without leaving any scratches or damage.

REMOVABLE KEY

Eliminate all potential hidden dangers. After installation, you can choose to remove the key to prevent the elderly or children from accidentally opening the window lock.

QUALITY MATERIAL

This window lock is made of solid aluminum alloy, anti-rust and anti-aging. Exquisite in craftsmanship and excellent in quality, can be reused with confidence.

CHILD & PET PROTECTION
GUARD AGAINST ROBBERY
IMPROVE INDOOR AIR CIRCULATION

Defender Security U 9928 Keyed Sash Lock – Child-Proof Security Lock Only Unlocks With Key – For Aluminum, Vinyl or Wood Double-Hung Windows – 2” Hole Centers – Heavy-Duty Zinc Diecast Construction, White

Based on 510 reviews Check latest price

Product description

Keep curious children safely inside with Prime-Line’s Child-Proof Keyed Sash Lock. When using this sash lock, windows can only be opened with the included key. The lock can be used on vertical single and double hung sliding windows, and on horizontal sliding windows. It can be installed on windows constructed of aluminum, wood and vinyl sash and frames. Installation is easy, and all screws are included. The sash lock features a 1” deep base, 5/8” deep keeper with 2” mounting hole center spacing on both the keeper and cam-action keyed locking latch. The key does not turn when inserted into the keyhole. When the key is inserted into the keyhole, the thumbturn and cam are released allowing it to be rotated open or rotated closed. To lock the device in the open or closed position, simply remove the key from the lock. Made of heavy-duty diecast zinc with a white enamel finish, this child-proof sash lock is strong, durable and made to last longer than the toddler years.

  • WINDOW SASH LOCK – This window sash lock can be used on vertical single and double hung sliding windows, and on horizontal sliding windows. It can be installed on windows constructed of aluminum, wood and vinyl sash and frames.
  • CHILD-PROOF– Prime-Line Keyed Sash Lock is designed to child-proof sliding windows and secure windows at high elevation. The lock can only be opened with the included key, keeping curious kids safely inside.
  • EASY INSTALLATION – Installation is easy with all screws included. The sash lock features a 1” deep base, 5/8” deep keeper with 2” mounting hole center spacing on both the keeper and cam-action keyed locking latch.
  • DURABLE – Made of heavy-duty diecast zinc with a white enamel finish, this child-proof sash lock is strong, durable and made to last.
  • NON-TURNING KEY - When the key is inserted into the keyhole, the thumbturn and cam are released allowing it to be rotated open or rotated closed. To lock the device in the open or closed position, simply remove the key from the lock.
  • NOTE: these are not all keyed alike – each lot contains a limited mix of key numbers

User questions & answers

Question: You could use it for a slide door Aluminum
Answer: maybe
Question: Can someone please tell me the depth of each piece. My windows are shallow. I'm wondering if I will still be able to open the window when installed
Answer: Are you talking about the width of the head of the screw or the length of the screw?
Question: Can i order a specific number? I ordered 4 and got two 631's, a 634, and a 648, I need one that is a different # than the ones i got
Answer: One which includes both pieces.
Question: Can I use the same key for multiple windows? I'd like to have the same key for 3 windows. Prime-Line Products U 9928 Window Sash Lock, Keyed, Heavy D
Answer: Yes

Prime-Line Products F 2620 Spring Cam Action Window Sash Lock, White

Based on 280 reviews Check latest price

Product description

This sash lock is constructed from zinc die cast and comes in a white finish. It features spring action cam locking and 2 in. hole spacing. Used on many double-hung windows.

From the Manufacturer

This sash lock is constructed from zinc die cast and comes in a white finish. It features spring action cam locking and 2 in. hole spacing. Used on many double-hung windows.

  • Cam-type sash lock
  • Used on many double-hung windows
  • 1 latch assembly 1 keeper and screws
  • 2 in. hole spacing
  • White finish

User questions & answers

Question: Are these good for left AND right opening windows
Answer: The keys are numbered so one would have to be sure to get a set of the locks with the same key number.

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