Model # U 9812

Internet #100117796

Store SKU #633141

Prime-Line Sliding Window Lock


Sliding Window Lock

$4.67 /each

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

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Warranty / Certifications

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Customer Reviews

Rated 3.5 out of 5 by 4 reviewers.
Rated 1.0 out of 5.0 by 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 April 16, 2013
Rated 5.0 out of 5.0 by 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! December 10, 2013
Rated 5.0 out of 5.0 by 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! April 27, 2009
Rated 3.0 out of 5.0 by 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. December 12, 2010
  • 2016-10-30 T20:46:09.257-05:00
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