Casement window handles

Question

Hi,
We purchased a house built in 1959. I've been unable to identify the manufacturer of our windows (no etching or numbers that I can see). Several of the handles have broke (especially the little plastic knob on the end) and I am trying to locate replacements. I appreciate your help.

Dave Sr. · Accepted Answer

Can you confirm the diameter of your spline? It looks like you have an older style Andersen operator, which normally uses a 3/8" diameter spline. However looking at your last measurements, it looks closer to 5/16". Take a look at the handles suggested on the right side of this page to see which one will fit your operator.