Model # U 9812

Internet #100117796

Store SKU #633141

Prime-Line Sliding Window Lock


Sliding Window Lock

$467 /each
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Frequently Bought Together

Product Overview

Heavy-duty extruded aluminum lock with tamper-resistant single hex security screw and wrench for use on metal horizontal sliding windows. Securely locks window in closed or ventilating position and helps prevent accidental opening of window by children. For a non-heavy-duty lock see item no. U-9980 or U-9982. For a non-marring lock see U-9820, U-9821, U-10876 and U-10551. For vinyl windows use U-9809 or U-10547.

  • Heavy-duty die-cast aluminum construction with white finish
  • Securely locks window in a closed or ventilating position
  • Tamper-resistant, single hex security screw
  • Helps prevent accidental opening by children
  • No tools required for easy installation
  • Includes hex wrench

Info & Guides

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Product Depth (in.)
1.125 in
Product Height (in.)
5.438 in
Product Width (in.)
3.813 in


Builders Hardware Product Type
Window Sash Lock
Finish Family
Hardware Included
Key lock
Package quantity
Sliding window lock
Window Repair Type

Warranty / Certifications

Manufacturer Warranty
Goods are warranted against defects in manufacturing for 1 year. In no case is Prime-Line responsible for user related damage or damage incurred during installation. Warranty is void if products are subjected to abnormal conditions, misapplication or abuse.

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Customer Questions & Answers

Can I use this sliding window lock to secure my rear sliding window in my truck? Window opens fr...

Can I use this sliding window lock to secure my rear sliding window in my truck? Window opens from the center and the window opens by separating the two. I would have to order two locks. I own a 93 ford f150
Asked by: Butch
Hello Butch, and thank you for your inquiry regarding this item from Prime-Line Products. Purchasing only one of these item packages will provide you with two (2) locks, but only you would be able to determine if it will fit over the track of your window or not. . Please feel free to contact Prime-Line Products directly where a Product Specialist there can better assist you with your inquiry. You may also send photos in for us to visualize precisely what you are inquiring about. For additional questions regarding this item, or any other product manufactured by Prime-Line Products, please call their toll free number at (877) 649-9740, or contact them by email at
Answered by: primelineProductExpert
Date published: 2016-11-21
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Customer Reviews

Sliding Window Lock is rated 3.4 out of 5 by 5.
Rated 3 out of 5 by from 3 Star Review Rating provided by a verified purchaser
Date published: 2017-04-20
Rated 5 out of 5 by from works great! It works just as it should. It get tightened well, doesn't move around and the window can't be opened unless I take it off. I didn't know when I ordered it online that it comes with two in the bag so I had a nice little surprise when I saw second one!
Date published: 2013-12-10
Rated 3 out of 5 by from Works But May Not Be All You Need We just added a sunroom with double sliding-glass windows. We bought these after our son opened one of the windows and pushed the screen out. It only fastens to one side of the double windows, however. It wouldn't fit the track on the other side, so we had to put a makeshift block on that side.
Date published: 2010-12-13
Rated 1 out of 5 by from Dirty item received The product was not heavy duty and was scratched and dirty. It really looked used. I purchased similar products at the store, but needed something heavy duty as advertised on line. However, the product is exactly what they sell in the store, plus shipping cost and was dirty, scratched w/ scuff markes and really appeared used. I could have saved $100% by purchasing at the store directly. Very disappointed
Date published: 2013-04-17
Rated 5 out of 5 by from such a little thing for so much safety! A must have, especially for those with children. Easy to use, permits you to leave your windows cracked open at night or when away from home to allow fresh air in without worrying about someone opening your windows to get in. Also a great security measure to keep kids in!
Date published: 2009-04-27
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