Prime-Line F 2538 Chrome Metal Spring Window Lock (2 pack)

Stops slipping windows in just a few minutes . Value for the money

These little gizmos work great in my 1928 wood windows. They do require two nails that come in the package. I only had to use one sash spring on each window and they stay in place and aren't hard to open and close. I nailed the gizmo to the window sash and not to the frame. I was concerned that they might scratch the frame as the window goes up and down but that has not happened. I have installed them on both painted and stained window frames. To replace my broken sash ropes would have required removing all of the the window trim as there is no other way to access the weight pockets. This was WAY easier and less mess. On some windows I only had to remove the stop on one side of the window in order to remove the sash. I highly recommend this product.

I used this lock to replace old ones that had bent over time due to small screws shifting the lock base. HELPFUL TIPS: Buy #8, 3/4” black sheet metal screws (if all you can get is silver, you can paint/marker the head to black).The screws that come with the lock are puny and rattle loose over time. (See image) The #8 size will fit the lock. If your hole is a bit smaller, pre-drill with the new screw before installing. Next— you do not need the second piece if you windows are flush and have a slot for the lock in the non-moving side of the window.This is a solid and simple lock that when installed correctly does its job.

This window latch latches very well.

Works as it should

The product is what it says it is. However, the manufacturer should, but does not, state the weight range of the sash and the spacing between sash & frame these are intended to work with. My sashes are 12lbs each and there’s a varying amount of space between sash & frame of 3/8-1/2” (very old house & window). There’s not enough overlap of travel on the frame so I put two of these on each sash & they initially did nothing. I added varying thicknesses of wood pieces between the product & sash to increase friction and that works to varying degrees but not smoothly. I’ve given up on trying to use this product and ordered clock-spring type sidemount sash balancers for this application. The provided nails are brittle crap, the head broke off the first one I put in, I suggest using similar nails that you trust.

The description was accurate and complete so the installation was simple. Perfect fit.

This little ingenious device saved a lot of work and work beautifully. Only needed on one side which allowed me to fix two windows with a broken sash cord.

They worked great and were as advertised.

Good product. A huge upgrade over the brittle plastic hardware we had.*** make sure to measure your existing hardware before ordering ***

Window Sash Lock, Cam Action, Universal, White Diecast, fitted my windows fine, look good, easy to install and a perfect fit