--- product_id: 76111639 title: "Prime-Line U 9927 Keyed Sash Lock, Child-Proof Security Lock Only Unlocks w/ Key, For Aluminum, Vinyl or Wood Double-Hung Windows, 2” Hole Centers, Heavy-Duty Zinc, Brass Plated (Single Pack)" brand: "defender security" price: "€ 36.51" currency: EUR in_stock: true reviews_count: 8 category: "Defender Security" url: https://www.desertcart.be/products/76111639-prime-line-u-9927-keyed-sash-lock-child-proof-security store_origin: BE region: Belgium --- # Keyed lock for exclusive access Fits aluminum, vinyl & wood windows Easy Phillips screwdriver install Prime-Line U 9927 Keyed Sash Lock, Child-Proof Security Lock Only Unlocks w/ Key, For Aluminum, Vinyl or Wood Double-Hung Windows, 2” Hole Centers, Heavy-Duty Zinc, Brass Plated (Single Pack) **Brand:** defender security **Price:** € 36.51 **Availability:** ✅ In Stock ## Summary > 🔒 Lock in safety, unlock peace of mind — because your home deserves the best. ## Quick Answers - **What is this?** Prime-Line U 9927 Keyed Sash Lock, Child-Proof Security Lock Only Unlocks w/ Key, For Aluminum, Vinyl or Wood Double-Hung Windows, 2” Hole Centers, Heavy-Duty Zinc, Brass Plated (Single Pack) by defender security - **How much does it cost?** € 36.51 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/76111639-prime-line-u-9927-keyed-sash-lock-child-proof-security) ## Best For - defender security enthusiasts ## Why This Product - Trusted defender security brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Installation:** All fasteners included—install in minutes with just a Phillips screwdriver, no extra tools needed. - • **Universal Fit for Sliding Windows:** Designed for aluminum, vinyl, or wood double-hung windows with 2” hole centers for seamless integration. - • **Durable Diecast Zinc with Brass Finish:** Heavy-duty construction ensures long-lasting protection with a polished, stylish look. - • **Non-Removable Screws for Maximum Safety:** Prevents tampering and forced entry, making your windows a fortress against unauthorized access. - • **Child-Proof Security, Elevated Peace of Mind:** Only unlocks with included key—keep curious kids safe and your home secure. ## Overview The Prime-Line U 9927 Keyed Sash Lock is a heavy-duty, child-proof security solution for sliding windows made from durable diecast zinc with a polished brass finish. It fits aluminum, vinyl, and wood double-hung windows with 2-inch hole centers and installs easily with included fasteners and a Phillips screwdriver. This lock only opens with its unique key, ensuring maximum safety and tamper resistance for your home or office. ## Description Do you need a more secure way to child-proof your sliding windows? These keyed-locking sash locks help add peace of mind by increasing the safety of any unmonitored room with sliding windows. They are constructed of diecast zinc and come in a beautiful, polished brass-plated finish, and only with their keys can the locks be disengaged to allow for opening of windows. These locks feature a universal design that allows them to be mounted on most vertical single-hung and double-hung sliding windows, in addition to those that slide horizontally. Depending on the size of the sash, these locks can be used as singles or pairs, and they can be installed on both left and right horizontal sliding sash. Each set contains two keys, one lock and keeper, and the installation fasteners. Installation of these sash locks is easy and can be done with a simple handheld Phillips head screwdriver. Other design features include a 5/8 inch wide keeper, 2 inch mounting hole centers (distance between each mounting hole measured from center to center of holes), and industry standard finish to match other existing hardware in the home or office. These keyed sash locks can be mounted on any sliding window where the checkrails of both the inner and outer sash rest flush, to include sliding windows constructed of aluminum, wood and vinyl. Only with the key inserted into the lock can the thumbturn swivel to open or close. Removing the key will lock the device in whichever position that the thumbturn is facing, either open or closed. Compare the style and dimensions of this lock to those required on your sliding windows and order yours today. Review: Great Sash Lock! - Have installed several and they are great---especially the non-removable screws! Highly recommend these. Lock when you are out of the house; unlock when in. Once installed with the non-removable screws, anybody trying to break in will have to break all the wooden panes. Review: a lock that works - It was easy to put o the window I had no issues at all and it works great. Now my four year old can't open his windows and throw out all his toys like he was doing ## Features - CHILD-PROOF WINDOW SECURITY - The Prime-Line keyed sash lock adds an extra layer of security for sliding windows, preventing unauthorized access; ideal for child-proofing high elevation windows, ensuring peace of mind in your home - SECURE WINDOWS WITH A KEY - This sash lock can only be unlocked with the provided key, making it a reliable child proof lock for vertical and horizontal window sash lock systems; perfect for keeping curious kids safe indoors - DURABLE CONSTRUCTION - Built with strong, diecast zinc, this window lock offers lasting durability with a beautiful brass finish; it is designed for use on aluminum, wood, or vinyl sliding windows - INSTALLATION - Installation is a breeze with all fasteners included; a Phillips head screwdriver is all you need to mount this lock for window securely on vertical or horizontal sash frames - DIMENSIONS - The Prime-Line sliding window lock has a 5/8-inch narrow keeper and 2-inch mounting hole center spacing; for further dimensional information, please see the line drawing before purchasing (Not Universal) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B002CX98XS | | Batteries Required? | No | | Best Sellers Rank | #672,143 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,149 in Window Locks & Latches | | Color | Brass | | Customer Reviews | 4.1 4.1 out of 5 stars (33) | | Date First Available | June 11, 2009 | | Finish | Brass | | Included Components | 2 keys, lock, keeper and fasteners | | Item Package Quantity | 1 | | Item Weight | 4.7 ounces | | Item model number | U 9927 | | Manufacturer | Prime-Line Products (Home Improvement) | | Material | Diecast | | Part Number | U 9927 | | Product Dimensions | 2.63 x 1 x 20 inches | | Size | 1 Pack | | Style | Traditional | | Warranty Description | Goods are warranted against manufacturing defects for 1 year. | ## Images ![Prime-Line U 9927 Keyed Sash Lock, Child-Proof Security Lock Only Unlocks w/ Key, For Aluminum, Vinyl or Wood Double-Hung Windows, 2” Hole Centers, Heavy-Duty Zinc, Brass Plated (Single Pack) - Image 1](https://m.media-amazon.com/images/I/81ginRwkTnL.jpg) ## Available Options This product comes in different **Color, Number Of Items** options. ## Questions & Answers **Q: 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** A: The keys are numbered so one would have to be sure to get a set of the locks with the same key number. **Q: 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.** A: A Locksmith can rekey them easily **Q: 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?** A: Depth 1 5/8 in. Length 2 5/8 in. Height 1in. Sorry it took so long to answer I don't check this email often. I should start checking it more often. **Q: You could use it for a slide door Aluminum** A: No ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Sash Lock! *by J***M on November 20, 2013* Have installed several and they are great---especially the non-removable screws! Highly recommend these. Lock when you are out of the house; unlock when in. Once installed with the non-removable screws, anybody trying to break in will have to break all the wooden panes. ### ⭐⭐⭐⭐⭐ a lock that works *by M***1 on April 23, 2013* It was easy to put o the window I had no issues at all and it works great. Now my four year old can't open his windows and throw out all his toys like he was doing ### ⭐⭐⭐ Window Locks *by C***T on January 11, 2023* These are a nice lock all keyed alike however they would not fit my windows and I sent back. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/76111639-prime-line-u-9927-keyed-sash-lock-child-proof-security](https://www.desertcart.be/products/76111639-prime-line-u-9927-keyed-sash-lock-child-proof-security) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-06-18*