internal automatic lock for window 3-28241

Question

internal automatic lock that keep the window from sliding back down are broken in twoliving room main floor windows in town house - one of windows in horizontal slider's frame is 29 inches high - approx weight 25 - 35 lbs

User submitted photos of window hardware.

Paul · Accepted Answer

Hello,

We believe you have 15-146 and 15-147 coil spring fittings. We'll need some pictures of the pivot shoe and will need the spring weight number stamped on the coil springs to further assist you. Thank you!