Alco Tilt windows

A handy person from Columbus, Ohio says:
May 11, 2016
Hello,

I have Alcoa tilt windows and would like to make sure I'm ordering the correct replacement spiral spring. Attached are some pictures. i need to know where to measure the spring. i think i have a 3/8 diameter and length is 35 inch. any help would be appreciated.
User submitted photos of a window balance.
A handy person from Columbus, Ohio says:
May 11, 2016
Hello, I'm am looking to purchase replacement spiral springs for my windows and i need to know what I'll need. I think i have 9/16 diameter and 34 inch length. It has a black tip and these are tilt windows. I would like to make sure i am measuring them correctly. Picture 1751 is where the spiral spring mounts up to the frame, the white insert is missing; do you sell that? also, do you have the screws that mount the replacement spiral spring to the frame? i added a post early but have come up with more questions after watching your videos. Thank you for your time and look forward to your response.
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Paul from SWISCO responded:
May 12, 2016
Thanks for contacting us. Based on your information, I would recommend our S600-34 spiral balance. It looks like the screw plug broke. I wonder if this is because you have a Black Tip; Black Tips indicate an especially strong spring. You may want to weigh your sash on a scale to confirm that this is the proper strength rating.

See our 26-200 screw plug and 33-016 screw. These should work for you. The damaged hole for the screw plug might be too broken to hold the 26-200, in which case we'd recommend a #8 x 1-1/2" (or longer) screw to secure the balance through the vinyl frame and into the wood framing behind it.
Balance Screw Plug
Balance Screw Plug
26-200
$0.49
34" Series 600 Spiral Tilt Window Balance
34" Series 600 Spiral Tilt Window Balance
S600-34
$10.20
How to install the 26-200 Screw Plug
How to install the 26-200 Screw Plug
VIDEO
WATCH >
How to replace a tilt window spiral balance.
How to replace a tilt window spiral balance.
VIDEO
WATCH >
How to Identify a Replacement Spiral Balance
How to Identify a Replacement Spiral Balance
VIDEO
WATCH >
Modifying the Series 795 Balance
Modifying the Series 795 Balance
GUIDE
READ >
How to choose the proper spiral balance tip color
How to choose the proper spiral balance tip color
GUIDE
READ >
How to adjust a spiral balance on a tilt window
How to adjust a spiral balance on a tilt window
GUIDE
READ >
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