If you need a simple way to replace a broken latch or improve window security, the right sash lock can make a big difference. The best options combine a precise fit, durable metal construction, and easy installation.
This roundup focuses on practical sash window locks for common single- and double-hung windows, plus a few choices for sliding styles and keyed security.
Best 10 Sash Window Locks Picks for 2026
Prime-Line Replacement Pick
Compact cam-action sash lock for sliding windows
- Direct-rail cam latch design
- Fits many aluminum sliding windows
- Diecast zinc with white finish
Best For: Repairing broken sash locks on compatible aluminum sliding windows
Dual-Pack Security Pick
White cam sash lock set for vertical and horizontal windows
- 2-pack includes mounting screws
- Fits aluminum, wood, and vinyl windows
- Left- or right-opening sash compatible
Best For: Upgrading multiple compatible windows with one purchase
Multi-Pack Value Buy
10-set replacement sash locks with screws
- 10 locks plus 20 self-tapping screws
- Fits 2-1/4 inch mounting centers
- Helps reduce sash movement and drafts
Best For: Bulk replacement on windows using the F 2590-style pattern
Multi-Pack Replacement Pick
4 Pcs White Cam Locks for Sliding Windows
- 4-lock set with 16 screws included
- 2.4-inch spacing for common replacements
- Corrosion-resistant alloy for durable use
Best For: Replacing multiple sliding window sash locks at once
Upgrade Security Pick
Antique Brass Cam Action Sash Lock
- Cam action hook pulls the keeper tight
- Anti-jimmy studs for added security
- Includes hardware for easy replacement
Best For: Upgrading a single vinyl sash window lock
Value 2-Pack Pick
- Two locks with stainless steel screws included
- Zinc alloy build with rust-resistant finish
- Cam hook and anti-jimmy studs for security
Best For: Replacing two matching sliding window latches
Keyed Security Pick
Prime-Line U 9928 Keyed Sash Lock
- Keyed design opens only with the included key.
- Fits aluminum, wood, and vinyl sash and frames.
- Heavy-duty diecast zinc with white enamel finish.
Best For: Child-proof security on compatible sliding windows
Multi-Pack Value Fix
4 Pack Sliding Window Sash Locks
- Four-lock set with 16 screws included.
- Fits vertical and horizontal sliding windows.
- Corrosion-resistant alloy with painted finish.
Best For: Replacing multiple worn locks on compatible windows
Replacement Match
Saillong F 2590 Compatible Sash Locks
- Fits Prime-Line F 2590-style 2-1/4-inch centers.
- Works on vertical and some horizontal sliding windows.
- Die cast zinc with corrosion-resistant white finish.
Best For: Replacing compatible sash locks with the right hole spacing
Prime-Line Replacement Pick – Compact cam-action sash lock for sliding windows
If you need a practical sash window locks replacement for an aluminum-framed sliding window, this Prime-Line lock is built for straightforward repairs. It uses a cam-action latch that engages the fixed rail directly, helping restore closure and add everyday home security without a separate keeper.
Best For: Replacing a broken or missing sash lock on vertical or horizontal aluminum sliding windows.
Pros:
- Cam-action latch engages the fixed rail directly.
- Fits vertical, single and double hung aluminum sliding windows, plus some horizontal aluminum windows.
- Diecast zinc body with a white painted finish for durability.
- Includes screws for a simple replacement install.
Cons:
- Uses 2-1/4″ mounting hole centers, so fit must be verified first.
- Designed for aluminum-framed windows, not a universal option.
This is a solid repair-focused pick if you want to restore the original locking function on a compatible window. The direct-rail design keeps the install simple, but checking dimensions before buying is essential.
Dual-Pack Security Pick – White cam sash lock set for vertical and horizontal windows
For shoppers comparing sash window locks for multiple windows, this 2-pack offers a simple cam-action upgrade with a modern white finish. It is designed for left- or right-opening sashes and works with aluminum, wood, or vinyl windows in vertical or horizontal sliding setups.
Best For: Replacing or upgrading more than one sash lock across different window types.
Pros:
- Includes 2 locks and mounting screws.
- Cam-action hook design locks firmly when closed.
- Works with left or right opening sash windows.
- Compatible with aluminum, wood, and vinyl, vertical or horizontal sliding windows.
Cons:
- Requires 2.08 inch hole spacing, so measurement matters.
- Fit should be confirmed before purchase.
This set stands out for flexibility and value if you have several compatible windows to secure. The tradeoff is the need to verify sizing carefully, since the fit is not universal.
Vinyl Window Fit – Replacement sash lock for 2-1/16 inch hole spacing
If your vinyl windows need a tighter close, this Prime-Line sash window lock is made as a replacement part for single and double hung vinyl windows. Its cam-action mechanism pulls the sash and keeper together, which helps restore security and improve sealing on the right fit.
Best For: Replacing worn or missing locks on compatible vinyl windows.
Pros:
- Cam-action mechanism helps pull the sash and keeper together.
- Made from diecast zinc with a corrosion-resistant white finish.
- Includes lock, keeper, and mounting fasteners.
- Quick DIY install with a Phillips screwdriver.
Cons:
- Designed for 2-1/16 inch hole spacing only.
- Not universal, so dimensions must be checked carefully.
This is a good match if you already know your window measurements and want a straightforward replacement. It focuses on proper fit and reliable closure rather than broad compatibility.
Multi-Pack Value Buy – 10-set replacement sash locks with screws
For larger repair jobs, this 10-pack of sash window locks gives you a simple way to replace multiple broken or worn locks at once. The F 2590-compatible design uses 2-1/4 inch mounting hole centers and comes with self-tapping screws for a basic replacement setup.
Best For: Bulk replacement projects for compatible windows around the home.
Pros:
- Includes 10 replacement locks and 20 self-tapping screws.
- Designed for 2-1/4 inch mounting hole centers.
- Helps pull window sashes together to reduce movement and drafts.
- Corrosion-resistant painted alloy construction.
Cons:
- Compatibility depends on the F 2590-style mounting pattern.
- No separate keeper details are listed in the supplied notes.
This pack is the best fit when you need multiple replacements and want to keep spares on hand. It is less about a single-window upgrade and more about efficient, repeatable repairs for matching windows.
Multi-Pack Replacement Pick – 4 Pcs White Cam Locks for Sliding Windows
If you need sash window locks for a straightforward replacement, this 4-pack is built around compatibility and convenience. The locks use a 2.4-inch mounting hole spacing and are made for vertical or horizontal sliding windows, so they suit a wide range of single- and double-hung setups across wood, aluminum, and vinyl frames.
Best For: Homeowners or offices that want a multi-pack replacement set for common sliding window sizes.
Pros:
- Includes 4 sash locks plus 16 screws for multiple windows or spares
- Corrosion-resistant alloy construction for long-term use
- Fits vertical and horizontal sliding windows with 2.4-inch hole spacing
- Works with wood, aluminum, and vinyl frames
Cons:
- Requires drilling with a 3mm bit during installation
- Best suited to windows that match the listed hole spacing
This is a practical choice if you want a simple, hardware-included replacement set rather than a specialty lock. The white finish and broad frame compatibility make it an easy fit for routine sash window lock upgrades.
Upgrade Security Pick – Antique Brass Cam Action Sash Lock
For a single sash window lock replacement, this Prime-Line cam action model focuses on a tighter lockup and added security features. It is designed for single and double hung vinyl windows, uses 1-3/4-inch mounting hole spacing, and includes the keeper and mounting hardware for a clean upgrade path.
Best For: Replacing one worn sash lock with a durable, security-minded metal option.
Pros:
- Cam action hook draws the keeper tight when locked
- Anti-jimmy studs add a security-focused design
- Diecast construction with antique brass finish
- Mounting hardware and instructions are included
Cons:
- Sold as a single pack, so it is not ideal for multiple windows
- Requires matching 1-3/4-inch on-center mounting holes
This lock makes sense when security and weather-tight fit matter more than buying in bulk. If your window matches the stated dimensions, it offers a solid, straightforward replacement for older sash window locks.
Value 2-Pack Pick – White ZUONAI Cam Sash Locks
If you want sash window locks for a two-window replacement job, this ZUONAI 2-pack is built around durability and easy installation. The zinc alloy die-cast body, electroplated finish, and included stainless steel screws make it a practical option for vertical or horizontal sliding windows that match the 2.08-inch hole spacing.
Best For: Buyers who want a durable two-pack for replacing matching sliding window latches.
Pros:
- 2-pack includes 8 screws and mounting hardware
- Cam action hook and anti-jimmy studs improve the locked fit
- Zinc alloy construction with rust-resistant electroplating
- Designed for left- or right-side use on sliding windows
Cons:
- Must match the 2.08-inch center spacing
- Installation requires drilling and basic hand tools
Overall, this is a strong value pick if you need two matching sash window locks and want metal hardware instead of plastic. Just verify the dimensions carefully first, since compatibility is the key to a smooth install.
Keyed Security Pick – Prime-Line U 9928 Keyed Sash Lock
If you want sash window locks that add keyed security, the Prime-Line U 9928 is built for single- and double-hung windows as well as horizontal sliders. It fits aluminum, wood, and vinyl frames, and the keyed design is useful when you want a lock that cannot be opened without the included key.
Best For: Homeowners who want a child-proof, keyed sash lock for compatible vertical or horizontal sliding windows.
Pros:
- Keyed mechanism only opens with the included key.
- Works on aluminum, wood, and vinyl sash and frames.
- Includes screws and is described as easy to install.
- Heavy-duty diecast zinc construction with a white enamel finish.
Cons:
- Single-pack format may not suit multi-window projects.
- Requires keyed operation instead of a simple thumb-turn.
This is a practical choice if you want a more security-focused sash lock rather than a basic replacement. The non-turning key mechanism and child-proof positioning make it stand out for added peace of mind.
Multi-Pack Value Fix – 4 Pack Sliding Window Sash Locks
For buyers replacing several worn sash window locks at once, this 4-pack offers a straightforward cam-lock solution for single-hung, double-hung, and other sliding windows. The white alloy construction and included screws make it a practical replacement option for wood, aluminum, and vinyl frames.
Best For: Replacing multiple loose or worn sash locks on compatible sliding windows.
Pros:
- Four locks and 16 screws are included for multiple replacements.
- Designed for vertical and horizontal sliding windows.
- Compatible with wood, aluminum, and vinyl window frames.
- Corrosion-resistant painted alloy construction.
Cons:
- Mounting hole spacing is specific at 2.4 inches on center.
- Installation calls for drilling with a 3mm drill bit.
This pack makes sense when you want a budget-friendly way to refresh several windows at once. It is a simple replacement part rather than a specialized security upgrade, but it covers the basics well.
Replacement Match – Saillong F 2590 Compatible Sash Locks
These sash window locks are aimed at replacement projects, especially if you need a match for Prime-Line F 2590 or a similar 2-1/4-inch hole spacing. They work on single-hung, double-hung, and some horizontal aluminum-framed sliding windows, making them useful when restoring broken or missing hardware.
Best For: Replacing compatible sash locks on vertical or horizontal sliding windows with 2-1/4-inch mounting centers.
Pros:
- Compatible with Prime-Line F 2590 sizing and 2-1/4-inch centers.
- Can be used on vertical and some horizontal sliding windows.
- Die cast zinc build with corrosion-resistant white finish.
- Includes 3 locks and 6 screws for replacement work.
Cons:
- Fit depends on matching the lock and sash dimensions.
- May be best used singly or in pairs depending on sash size.
If you need a like-for-like replacement, this set is focused on compatibility and basic security restoration. The finish and zinc construction should blend in well with existing white hardware.
How We Picked the Best Sash Window Locks
We focused on fit, material quality, ease of installation, and the kind of security each lock provides. Because sash locks are often used as direct replacements, matching hole spacing and lock style is just as important as durability. We also looked for options that work across vinyl, wood, and aluminum windows where applicable.
Quick Comparison
Most shoppers will choose between standard cam-action replacements, multi-pack value options, and upgraded security models. Standard replacement locks are best for restoring a damaged window, while keyed versions add an extra layer of protection for ground-floor or accessible windows. If you are outfitting multiple windows, pack size and screw inclusion matter more than decorative finish.
Key Buying Factors for Sash Window Locks
Hole Centers and Compatibility
Start with the mounting hole spacing on your current lock. A mismatch can make installation difficult or impossible. Check whether the lock is made for single-hung, double-hung, or sliding windows, and confirm if it is intended for vertical or horizontal use.
Material and Finish
Diecast and metal locks usually offer better long-term durability than lightweight alternatives. White finishes blend well with most vinyl windows, while antique brass may suit older frames or visible hardware where appearance matters.
Security Level
Basic Sash Window Locks are usually meant to prevent accidental opening and discourage casual entry. If security is a priority, look for tighter engagement, sturdy keepers, and keyed designs that only unlock with a key.
Installation and Hardware
Many replacements are designed for straightforward DIY installation, but included screws, alignment lugs, and clear sizing details can save time. If you are replacing several locks, a multi-pack can be more cost-effective than buying singles.
Who Should Buy Which Sash Window Locks?
Choose standard replacement Sash Window Locks if your main goal is to fix a broken latch with minimal hassle. Go with a multi-pack if you need to update several windows in one project. Pick a keyed security lock for maximum control on vulnerable windows. For older or specialty windows, prioritize exact measurements and hardware compatibility over price alone.
In short, the best choice is the one that fits your window correctly and matches your security needs. A well-chosen sash lock should close smoothly, hold firmly, and make your windows feel secure without complicating everyday use.