Casement window handles

A home owner from Lathrup Village, MI says:
August 16, 2017
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.
Spline

spline

Handle

Operator
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
August 23, 2017
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.
Casement Window Handle, fits Andersen
Casement Window Handle, fits Andersen
39-286
$7.25
Handle with a 3/8" Gear Bore
Handle with a 3/8" Gear Bore
39-104
$4.90
Crank Handle, 5/16"
Crank Handle, 5/16"
39-274
$12.32
How to install a wood casement window crank
How to install a wood casement window crank
GUIDE
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