--- product_id: 339887359 title: "Prime-Line U 9809 Sliding Window Lock, 1/2 in, Diecast Construction, White, FOR VINYL WINDOWS (Pack of 2)" brand: "defender security" price: "¥8257" currency: JPY in_stock: false reviews_count: 5 category: "Defender Security" url: https://www.desertcart.jp/products/339887359-prime-line-u-9809-sliding-window-lock-1-2-in store_origin: JP region: Japan --- # Secure diecast lock Adjustable jaw fits 1/16"–1/2" rails Tool-free cam lever Prime-Line U 9809 Sliding Window Lock, 1/2 in, Diecast Construction, White, FOR VINYL WINDOWS (Pack of 2) **Brand:** defender security **Price:** ¥8257 **Availability:** ❌ Out of Stock ## Summary > 🔐 Lock in safety and style—because your home deserves the best! ## Quick Answers - **What is this?** Prime-Line U 9809 Sliding Window Lock, 1/2 in, Diecast Construction, White, FOR VINYL WINDOWS (Pack of 2) by defender security - **How much does it cost?** ¥8257 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/339887359-prime-line-u-9809-sliding-window-lock-1-2-in) ## 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:** No tools required—secure your windows in seconds - • **Durable Diecast Construction:** Robust metal build ensures long-lasting childproofing and security - • **Ventilation-Friendly Locking:** Allows windows to stay locked in a ventilating position for fresh air - • **Universal Fit for Vinyl Frames:** Adjustable jaw fits most vinyl window rails from 1/16" to 1/2" thick - • **Vise-Like Grip for Ultimate Security:** Locks your vinyl windows firmly without damaging frames ## Overview The Prime-Line U 9809 Sliding Window Lock is a sturdy, diecast secondary lock designed specifically for vinyl sliding windows. Featuring an adjustable jaw that fits frame thicknesses from 1/16" to 1/2", it secures windows firmly without damaging the frame. Its cam-style lever allows locking in a ventilated position, combining safety with fresh airflow. Easy to install with no tools needed, this white-finished lock offers reliable childproofing and peace of mind. ## Description For vinyl windows onlyAdjUNITED STATEStable jaw fits all vinyl frame rail thicknesses from 1/16" up to 1/2" thick"Vise like" grip holds securely and will not mar inside frameAllows window to lock in ventilating positionCam style locking leverNo tools requiredDiecast materialWhite finish1-13/16" L x 1" W2 countThis diecast constructed security lock features an adjUNITED STATEStable jaw that fits up to 1/2" thick rails. It is designed not to mar the inside frame of your vinyl windows. This lock also allows your window to lock in a ventilating position.Material: MetalFinish: Metal Finish Review: Not made of plastic, great sturdy design for childproofing Review: Terrible didn’t work for me ## Features - For use on horizontal sliding windows and most vertical sliding (single hung) windows, as a secondary window lock - Fits most vinyl frame rail thicknesses from 1/16 in. to 1/2 in. - White painted finish - Diecast construction - Used on vertical and horizontal sliding windows as a secondary window lock ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B005H3N43K | | Brand | Defender Security | | Brand Name | Defender Security | | Colour | 1 - White | | Customer Reviews | 4.3 out of 5 stars 4,377 Reviews | | Global Trade Identification Number | 00049793098092 | | Item Dimensions | 30 x 25 x 508 Millimeters | | Item Weight | 127 g | | Item dimensions L x W x H | 30 x 25 x 508 Millimeters | | Manufacturer | Prime-Line Products (Home Improvement) | | Manufacturer Warranty Description | Contact seller of record | | Model Number | U 9809 | | UPC | 049793098092 | ## Product Details - **Brand:** Defender Security - **Item dimensions L x W x H:** 1.19 x 1 x 20 inches - **Material:** Diecast - **Special Feature:** Adjustable - **Style:** Sliding Window Lock ## Images ![Prime-Line U 9809 Sliding Window Lock, 1/2 in, Diecast Construction, White, FOR VINYL WINDOWS (Pack of 2) - Image 1](https://m.media-amazon.com/images/I/51XK1yv-zRL.jpg) ![Prime-Line U 9809 Sliding Window Lock, 1/2 in, Diecast Construction, White, FOR VINYL WINDOWS (Pack of 2) - Image 2](https://m.media-amazon.com/images/I/61qM07OGcTL.jpg) ## Questions & Answers **Q: Can I use this product in sliding doors?** A: U 10547 is the door version of this item **Q: How does it work? Are you going to post any pictures of it in use?** A: They work great. Seems like it would be easier to break a window than to try to force a window that is locked with two of these. Simply twist them until they begin to tighten to window frame, then clamp them down. They tighten the rest of the way when you clamp them, a lot like vise grip pliers. I'm adding two photos to help. **Q: does this come with 2 pcs in a pack? or this is only fr 1 unit?** A: Luckily, I saved a packaged pack for back-up. The USB on it says 0 49793 09809 2, and it is indeed a 2-pc packet (which states "Fits 1" wide rail"). The cam locking mechanism also makes re-placing the lock easy. **Q: is this somthing that can keep my 6yr old from the window all the way or could it be easly removed by him** A: That seems like a loaded question. When I was 4, I figured out how to put a kitchen chair next to the counter. Climb on the counter and hoist myself to the top shelf of the cupboard to retrieve a bottle of Flintstones vitamins. I subsequently ate the whole bottle and had to have my stomach pumped. Kids are smart. Nothing is completely kidproof. Having said that, it depends on the type of window. Does it slide left to right or up and down? Mine slide up and down, and a child would have to be tall enough to reach high enough to unlatch them. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Not made of plastic, great sturdy design for childproofing *by D***C on 22 September 2019* ### ⭐ Terrible didn’t work for me *by M***C on 2 December 2022* ### ⭐⭐⭐⭐⭐ Very strong *by M***H on 8 April 2018* ## Frequently Bought Together - Prime-Line U 9809 Sliding Window Lock for Vinyl Windows – Easy Installation to Keep Windows Securely Closed – Diecast Construction, White (2 Pack) - 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) - Window Locks, 4 Sets Sliding Security Window Lock with Key for Vertical & Horizontal Sliding Windows & Sliding Doors, Adjustable Window Locks Security Window Stoppers for Patio Bedroom Home and Office --- ## 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.jp/products/339887359-prime-line-u-9809-sliding-window-lock-1-2-in](https://www.desertcart.jp/products/339887359-prime-line-u-9809-sliding-window-lock-1-2-in) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-05-17*